Clara Gram Gjesdal's picture
Clara Gram
Gjesdal
Associate professor II
Visit Address: 
Haukeland universitetssykehus, Laboratoriebygget
5021 Bergen
Postal Address: 
Postboks 7804
5021 Bergen
Phone: 
+47 55 58 85 24
E-mail: 
Clara.Gjesdal@k2.uib.no
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Journal articles
  • Apalset, Ellen M; Gjesdal, Clara Gram; Ueland, Per Magne; Midttun, Øivind; Ulvik, Arve; Eide, Geir Egil; Meyer, Klaus; Tell, Grethe Seppola. 2014. Interferon (IFN)-γ-mediated inflammation and the kynurenine pathway in relation to bone mineral density: The Hordaland Health Study. Clinical and Experimental Immunology. 176: 452-460. doi: 10.1111/cei.12288
  • Apalset, Ellen M; Gjesdal, Clara Gram; Ueland, Per Magne; Øyen, Jannike; Meyer, Klaus; Midttun, Øivind; Eide, Geir Egil; Tell, Grethe Seppola. 2014. Interferon gamma (IFN-γ)-mediated inflammation and the kynurenine pathway in relation to risk of hip fractures: The Hordaland Health Study. Osteoporosis International. 25: 2067-2075. doi: 10.1007/s00198-014-2720-7
  • Holvik, Kristin; Gjesdal, Clara Gram; Tell, Grethe Seppola; Grimnes, Guri; Schei, Berit; Apalset, Ellen M; Samuelsen, Sven Ove; Blomhoff, Rune; Michaëlsson, Karl; Meyer, Haakon E. 2014. Low serum concentrations of alpha-tocopherol are associated with increased risk of hip fracture. A NOREPOS study. Osteoporosis International. Published 2014-07-26. doi: 10.1007/s00198-014-2802-6
  • Omsland, Tone Kristin; Emaus, Nina; Tell, Grethe Seppola; Magnus, Jeanette H.; Ahmed, Luai Awad; Holvik, Kristin; Center, Jacqueline; Forsmo, Siri; Gjesdal, Clara Gram; Schei, Berit; Vestergaard, Peter; Eisman, John A.; Falch, Jan Arvid; Tverdal, Aage; Søgaard, Anne-Johanne; Meyer, Haakon E. 2014. Mortality following the first hip fracture in Norwegian women and men (1999-2008). A NOREPOS study. Bone. 63: 81-86. doi: 10.1016/j.bone.2014.02.016
  • Søgaard, Anne-Johanne; Meyer, Haakon E; Emaus, Nina; Grimnes, Guri; Gjesdal, Clara Gram; Forsmo, Siri; Schei, Berit; Tell, Grethe Seppola. 2014. Cohort profile: Norwegian Epidemiologic Osteoporosis Studies (NOREPOS). Scandinavian Journal of Public Health. 10 pages. doi: 10.1177/1403494814551858
  • Winther, Anne; Dennison, Elaine; Ahmed, Luai Awad; Furberg, Anne-Sofie; Grimnes, Guri; Jorde, Rolf; Gjesdal, Clara Gram; Emaus, Nina. 2014. The Tromsø Study: Fit Futures: a study of Norwegian adolescents' lifestyle and bone health. Archives of Osteoporosis. 9:185. 11 pages. doi: 10.1007/s11657-014-0185-0
  • Øyen, Jannike; Gjesdal, Clara Gram; Nygård, Ottar; Lie, Stein Atle; Meyer, Haakon; Apalset, Ellen M; Ueland, Per Magne; Pedersen, Eva Kristine Ringdal; Midttun, Øivind; Vollset, Stein Emil; Tell, Grethe Seppola. 2014. Smoking and body fat mass in relation to bone mineral density and hip fracture: The Hordaland Health Study. PLoS ONE. 9. doi: 10.1371/journal.pone.0092882
  • Øyen, Jannike; Nygård, Ottar; Gjesdal, Clara Gram; Ueland, Per Magne; Apalset, Ellen M; Schartum-Hansen, Hall; Vollset, Stein Emil; Meyer, Klaus; Tell, Grethe S. 2014. Plasma choline, nicotine exposure, and risk of low bone mineral density and hip fracture: the Hordaland Health Study. Journal of Bone and Mineral Research. 29: 242-250. doi: 10.1002/jbmr.2025
  • Emaus, Nina; Nguyen, Nguyen D.; Almås, Bjørg; Berntsen, Gro; Center, Jacqueline R; Christensen, Monika; Gjesdal, Clara Gram; Grimsgaard, Sameline; Nguyen, Tuan V.; Salomonsen, Laila Johansdatter; Eisman, John A.; Fønnebø, Vinjar. 2013. Serum level of under-carboxylated osteocalcin and bone mineral density in early menopausal Norwegian women. European Journal of Nutrition. 52: 49-55. doi: 10.1007/s00394-011-0285-1
  • Holvik, Kristin; Ahmed, Luai Awad; Forsmo, Siri; Gjesdal, Clara Gram; Grimnes, Guri; Samuelsen, Sven Ove; Schei, Berit; Blomhoff, Rune; Tell, Grethe S; Meyer, Haakon E. 2013. Low Serum Levels of 25-Hydroxyvitamin D Predict Hip Fracture in the Elderly: A NOREPOS Study. Journal of Clinical Endocrinology and Metabolism. 98: 3341-3350. doi: 10.1210/jc.2013-1468
  • Holvik, Kristin; Gjesdal, Clara Gram; Tell, Grethe S; Grimnes, Guri; Apalset, Ellen M; Schei, Berit; Blomhoff, Rune; Michaëlsson, Karl; Meyer, Haakon E. 2013. Low serum concentration of vitamin E is associated with increased risk of hip fracture in the elderly. A NOREPOS case-cohort study. Journal of Bone and Mineral Research. 28: S63.
  • Holvik, Kristin; Gjesdal, Clara Gram; Tell, Grethe S; Grimnes, Guri; Schei, Berit; Apalset, Ellen M; Samuelsen, Sven Ove; Blomhoff, Rune; Michaëlsson, Karl; Meyer, Haakon E. 2013. Low serum concentrations of vitamin E are associated with increased risk of hip fracture in older Norwegians. A NOREPOS study. Norsk Epidemiologi, Supplement. 23: 21.
  • Omsland, Tone Kristin; Emaus, Nina; Holvik, Kristin; Tell, Grethe S; Ahmed, Luai Awad; Center, Jackie; Forsmo, Siri; Gjesdal, Clara Gram; Schei, Berit; Vestergaard, Peter; Eisman, John A.; Søgaard, Anne Johanne; Falch, Jan A.; Magnus, Jeanette H.; Meyer, Haakon E. 2013. GENDER DIFFERENCES IN ALL-CAUSE MORTALITY FOLLOWING FIRST HIP FRACTURE IN 81,867 NORWEGIAN WOMEN AND MEN: THE NORWEGIAN EPIDEMIOLOGIC OSTEOPOROSIS STUDIES. Osteoporosis International. 24: S257-S257.
  • Omsland, Tone Kristin; Emaus, Nina; Tell, Grethe S; Ahmed, Luai Awad; Center, Jacqueline R; Nguyen, Nyuyen D; Gjesdal, Clara Gram; Forsmo, Siri; Schei, Berit; Søgaard, Anne-Johanne; Meyer, Haakon E. 2013. Ten-year risk of second hip fracture. A NOREPOS study. Bone. 52: 493-497. doi: 10.1016/j.bone.2012.09.009
  • Vinknes, Kathrine; Elshorbagy, Amany K.; Drevon, Christian A; Gjesdal, Clara Gram; Tell, Grethe S; Nygård, Ottar; Vollset, Stein Emil; Refsum, Helga. 2013. Evaluation of the body adiposity index in a caucasian population: the Hordaland Health Study. American Journal of Epidemiology. 177: 586-592. doi: 10.1093/aje/kws271
  • Vinknes, Kathrine; Elshorbagy, Amany K; Nurk, Eha; Drevon, Christian A; Gjesdal, Clara Gram; Tell, Grethe S; Nygård, Ottar; Vollset, Stein Emil; Refsum, Helga. 2013. Plasma stearoyl-CoA desaturase indices: Association with lifestyle, diet and body composition. Obesity. 21: E294-E302. doi: 10.1002/oby.20011
  • Haugeberg, Glenn; Bader, Lucius; Hoff, Mari; Haaland, K; Gjesdal, Clara Gram; Storesund, Bertha; Gulseth, Hans-Christian; Haavardsholm, Espen A.; Mikkelsen, K. 2012. If remission and low disease activity is the treatment goal in rheumatoid arthritis, how far are we from this goal in patients currently treated with biologics in ordinary clinical practice? Data from the Norwegian BIORHEUMA project. Scandinavian Journal of Rheumatology. 41: 58-58.
  • Haugeberg, Glenn; Bader, Lucius; Rødevand, Erik; Haaland, K; Gjesdal, Clara Gram; Storesund, Bertha; Gulseth, Hans-Christian; Haavardsholm, Espen A.; Mikkelsen, K. 2012. Current and previous use of biologics in rheumatoid arthritis patients: data from the Norwegian BIORHEUMA project. Scandinavian Journal of Rheumatology. 41: 58-59.
  • Omsland, Tone Kristin; Holvik, Kristin; Meyer, Haakon E; Center, Jacqueline; Emaus, Nina; Tell, Grethe S; Schei, Berit; Tverdal, Aage; Gjesdal, Clara Gram; Grimnes, Guri; Forsmo, Siri; Eisman, John A.; Søgaard, Anne-Johanne. 2012. Hip fractures in Norway 1999-2008: time trends in total incidence and second hip fracture rates. A NOREPOS study. European Journal of Epidemiology. 27: 807-814. doi: 10.1007/s10654-012-9711-9
  • Apalset, Ellen M; Gjesdal, Clara Gram; Eide, Geir Egil; Tell, Grethe S. 2011. Intake of vitamin K1 and K2 and risk of hip fractures: The Hordaland Health Study. Bone. 49: 990-995. doi: 10.1016/j.bone.2011.07.035
  • Emaus, Nina; Nguyen, Nguyen; Almås, Bjørg; Berntsen, Gro; Center, Jacqueline; Christensen, Monika; Gjesdal, Clara Gram; Grimsgaard, Sameline; Nguyen, Tuam; Salomonsen, Laila Johansdatter; Eisman, John; Fønnebø, Vinjar. 2011. Serum level of under-carboxylated osteocalcin and bone mineral density in early menopausal Norwegian women. European Journal of Nutrition. 7 pages. doi: 10.1007/s00394-011-0285-1
  • Holvik, Kristin; Meyer, Haakon E; Gjesdal, Clara Gram; Blomhoff, Rune; Tell, Grethe S. 2011. The Association Between S-25-Hydroxyvitamin D and Total Femur BMD May Depend on Serum Concentrations of Retinol in Men. The Hordaland Health Study and The Oslo Health Study. Norwegian Epidemiologic Osteoporosis Studies (NOREPOS). Journal of Bone and Mineral Research. 26.
  • Omsland, Tone Kristin; Ahmed, Luai; Grønskag, Anna Brenne; Schei, Berit; Emaus, Nina; Langhammer, Arnulf; Joakimsen, Ragnar M; Jørgensen, Lone; Søgaard, Anne Johanne; Gjesdal, Clara Gram; Meyer, Haakon E. 2011. More forearm fractures among urban than rural women: The NOREPOS study based on the Tromsø study and the HUNT study. Journal of Bone and Mineral Research. 26: 850-856. doi: 10.1002/jbmr.280
  • Omsland, Tone Kristin; Holvik, Kristin; Emaus, Nina; Tell, Grethe S; Schei, Berit; Tverdal, Aage; Gjesdal, Clara Gram; Grimnes, Guri; Forsmo, Siri; Meyer, Haakon E; Søgaard, Anne-Johanne. 2011. Hip fracture incidence in Norway 1999-2008. Norwegian Epidemiologic Osteoporosis Studies. Norsk Epidemiologi, Supplement. 21: 38-38.
  • Vinknes, Kathrine; De Vogel, Stefan; Elshorbagy, Amany K; Nurk, Eha; Drevon, Christian A; Gjesdal, Clara Gram; Tell, Grethe S; Vollset, Stein Emil; Refsum, Helga. 2011. Dietary intake of protein is positively associated with percent body fat in middle-aged and older adults. Journal of Nutrition. 141: 440-446. doi: 10.3945/jn.110.133710
  • Øyen, Jannike; Apalset, Ellen M; Gjesdal, Clara Gram; Brudvik, Christina; Lie, Stein Atle; Hove, Leiv M. 2011. Vitamin D inadequacy is associated with low-energy distal radius fractures: A case-control study. Bone. 48: 1140-1145. doi: 10.1016/j.bone.2011.01.021
  • Øyen, Jannike; Apalset, Ellen M; Gjesdal, Clara Gram; Brudvik, Christina; Lie, Stein Atle; Hove, Leiv M. 2011. IS VITAMIN D INADEQUACY ASSOCIATED WITH LOW-ENERGY DISTAL RADIUS FRACTURES? A CASE-CONTROL STUDY. Osteoporosis International. 22: 270-270.
  • Øyen, Jannike; Brudvik, Christina; Gjesdal, Clara Gram; Tell, Grethe S; Lie, S; Hove, Leiv M. 2011. IS OSTEOPOROSIS A RISK FACTOR FOR DISTAL RADIUS FRACTURES? A CASE-CONTROL STUDY OF 749 PATIENTS AND 608 CONTROLS. Osteoporosis International. 22: 281-282.
  • Øyen, Jannike; Brudvik, Christina; Gjesdal, Clara Gram; Tell, Grethe S; Lie, Stein Atle; Hove, Leiv M. 2011. Osteoporosis as a Risk Factor for Distal Radial Fractures A Case-Control Study. Journal of Bone and Joint Surgery. American volume. 93A: 348-356. doi: 10.2106/JBJSJ.00303
  • Apalset, Ellen M; Gjesdal, Clara Gram; Eide, Geir Egil; Johansen, Anne Marte Wetting; Drevon, Christian A; Tell, Grethe S. 2010. Dietary vitamins K1, K2 and bone mineral density; The Hordaland Health Study. Archives of Osteoporosis. 5: 73-81.
  • Apalset, Ellen M; Gjesdal, Clara Gram; Tell, Grethe S. 2010. INTAKE OF VITAMIN K1 AND K2 AS PREDICTORS OF HIP FRACTURE IN WOMEN AND MEN: THE HORDALAND HEALTH STUDY. Scandinavian Journal of Rheumatology. 39: 20-20.
  • Christensen, Anne Elisabeth; Knappskog, Per Morten; Midtbø, Marit; Gjesdal, Clara Gram; Mengel-From, Jonas; Morling, Niels; Rødahl, Eyvind; Boman, Helge. 2010. Brittle Cornea Syndrome Associated with a Missense Mutation in the Zinc-Finger 469 Gene. Investigative Ophthalmology and Visual Science. 51: 47-52. doi: 10.1167/iovs.09-4251
  • Emaus, Nina; Gjesdal, Clara G; Almås, Bjørg; Christensen, Monica; Grimsgaard, Sameline; Berntsen, Gro; Salomonsen, Laila Johansdatter; Fønnebø, Vinjar. 2010. Vitamin K2 supplementation does not infuence bone loss in early menopausal women: a randomised double-blind placebo-controlled trial. Osteoporosis International. 21: 1731-1740. doi: 10.1007/s00198-009-1126-4
  • Omsland, Tone Kristin; Ahmed, Luai A.; Grønskag, Anna Brenne; Schei, Berit; Emaus, Nina; Langhammer, Arnulf; Joakimsen, Ragnar M; Jørgensen, Lone; Søgaard, Anne Johanne; Gjesdal, Clara Gram; Meyer, Haakon E. 2010. Urban-rural differences in forearm fractures in postmenopausal women - the norepos study. Osteoporosis International. 21: 258-259.
  • Øyen, Jannike; Brudvik, Christina; Gjesdal, Clara Gram; Tell, Grethe S; Lie, Stein Atle; Hove, Leiv M. 2010. Is osteoporosis a risk factor for distal radius fractures? A case-control study of 1374 women and men aged 50-90 years. Osteoporosis International. 21: 260-261.
  • Øyen, Jannike; Brudvik, Christina; Gjesdal, Clara Gram; Tell, Grethe S; Lie, Stein Atle; Hove, Leiv M. 2010. Is osteoporosis a risk factor for distal raduis fractures? A case-control study of 1374 women and men aged 50-90 years. Scandinavian Journal of Rheumatology. 39: 20-20.
  • Øyen, Jannike; Gjesdal, Clara Gram; Brudvik, Christina; Hove, Leiv M; Apalset, Ellen M; Gulseth, Hans-Christian; Haugeberg, Glenn. 2010. Low-energy distal radius fractures in middle-aged and elderly men and women-the burden of osteoporosis and fracture risk. Osteoporosis International. 21: 1257-1267. doi: 10.1007/s00198-009-1068-x
  • Øyen, Jannike; Gjesdal, Clara Gram; Brudvik, Christina; Hove, Leiv M; Apalset, Ellen M; Gulseth, Hans-Christian; Haugeberg, Glenn. 2010. Evidence-based" or "logic-based" medicine?: response to Blank et al. Osteoporosis International. 21: 1685-1686. doi: 10.1007/s00198-010-1257-7
  • Elshorbagy, Amany K; Gjesdal, Clara Gram; Nurk, Eha; Tell, Grethe Seppola; Ueland, Per M; Nygård, Ottar; Tverdal, Aage; Vollset, Stein Emil; Smith, A David; Refsum, Helga. 2009. Cysteine, homocysteine and bone mineral density: A role for body composition? Bone. 44: 954-958. doi: 10.1016/j.bone.2008.12.018
  • Emaus, Nina; Gjesdal, Clara Gram; Almås, Bjørg; Christensen, Monika; Grimsgaard, Sameline; Berntsen, Gro; Salomonsen, Laila; Fønnebø, Vinjar. 2009. Vitamin K2 supplementation does not influence bone loss in early menopausal women: a randomised double-blind placebo-controlled trial. Osteoporosis International.
  • Løvås, Kristian; Gjesdal, Clara G; Christensen, Monica; Wolff, Anette; Almas, B; Almås, Bjørg; Svartberg, Johan; Fougner, Kristian J; Syversen, Unni; Bollerslev, Jens; Falch, Jan A; Falch, Jan Arvid; Hunt, Penelope; Chatterjee, V Krishna; Husebye, Eystein S. 2009. Glucocorticoid replacement therapy and pharmacogenetics in Addison's disease: effects on bone. European Journal of Endocrinology. 160: 993-1002. doi: 10.1530/EJE-08-0880
  • Omsland, TK; Gjesdal, Clara G; Emaus, Nina; Tell, Grethe S.; Tell, Grethe Seppola; Meyer, Haakon. 2009. Regional differences in hip bone mineral density levels in Norway: the NOREPOS study. Osteoporosis International. 20: 631-638. doi: 10.1007/s00198-008-0699-7
  • Omsland, TK; Schei, B; Grønskag, AB; Langhammer, A; Forsen, Lisa; Gjesdal, CG; Meyer, Haakon E. 2009. Weight loss and distal forearm fractures in postmenopausal women. Osteoporosis International. 20: 2009-2016. doi: 10.1007/s00198-009-0894-1
  • Omsland, TK; Schei, B; Grønskag, Anna Brenne; Langhammer, A; Forsen, Lisa; Gjesdal, CG; Meyer, Haakon E. 2009. Weight loss and distal forearm fractures in women 65 years an older. Osteoporosis International. 20: S264-S265. doi: 10.1007/s00198-009-0923-0
  • Elshorbagy, Amany K.; Nurk, Eha; Gjesdal, Clara Gram; Tell, Grethe S; Ueland, Per M; Nygård, Ottar; Tverdal, Aage; Vollset, Stein Emil; Refsum, Helga. 2008. Homocysteine, cysteine, and body composition in the Hordaland Homocysteine Study: does cysteine link amino acid and lipid metabolism? American Journal of Clinical Nutrition. 88: 738-746.
  • Gjesdal, Clara Gram; Halse, Johan I.; Eide, Geir Egil; Brun, Johan G; Tell, Grethe S. 2008. Impact of lean mass and fat mass on bone mineral density: The Hordaland Health Study. Maturitas. 59: 191-200. doi: 10.1016/j.maturitas.2007.11.002
  • Omsland, Tone K; Emaus, Nina; Gjesdal, Clara G; Falch, Jan A; Tell, Grethe S; Forsen, Lisa; Berntsen, Gro KR; Meyer, Haakon E. 2008. In vivo and in vitro comparison of densitometers in the NOREPOS study. Journal of clinical densitometry. 11: 276-282. doi: 10.1016/j.jocd.2007.10.001
  • Omsland, Tone Kristin; Gjesdal, Clara Gram; Emaus, Nina; Falch, Jan Arvid; Tell, Grethe S; Meyer, HE. 2008. Regional differences in hip bone mineral density levels in Norway. The NOREPOS Study. Osteoporosis International. doi: DOI 10.1007/s00198-008-0699-7
  • Vesterhus, Mette; Ræder, Helge; Aurlien, Harald; Gjesdal, Clara Gram; Bredrup, Cecilie; Holm, Pål Ivar; Molven, Anders; Bindoff, Laurence; Berstad, Arnold; Njølstad, Pål Rasmus. 2008. Neurological features and enzyme therapy in patients with endocrine and exocrine pancreas dysfunction due to CEL mutations. Diabetes Care. 31: 1738-1740. doi: 10.2337/dc07-2217
  • Gjesdal, Clara Gram; Vollset, Stein Emil; Ueland, Per Magne; Refsum, Helga; Meyer, Haakon E; Tell, Grethe S. 2007. Plasma homocysteine, folate, and vitamin B-12 and the risk of hip fracture: The hordaland homocysteine study. Journal of Bone and Mineral Research. 22: 747-756. doi: 10.1359/JBMR.070210
  • Omsland, TK; Emaus, N; Gjesdal, Clara Gram; Falch, Jan Arvid; Tell, GS; Forsen, Lisa; Berntsen, Gro K. Rosvold; Meyer, Haakon E. 2007. In vivo and in vitro comparison of DXA scanners. Journal of Bone and Mineral Research. 22: S298.
  • Gjesdal, Clara G.; Vollset, Stein Emil; Ueland, Per Magne; Refsum, Helga; Drevon, Christian; Gjessing, Håkon K.; Tell, Grethe S. 2006. Plasma total homocysteine level and bone mineral density - The Hordaland homocysteine study. Archives of Internal Medicine. 166: 88-94.
  • Refsum, Helga; Nurk, Eha; Smith, A.D.; Ueland, Per Magne; Gjesdal, Clara G.; Bjelland, Ingvar; Tverdal, Aage; Tell, Grethe S.; Nygård, Ottar; Vollset, Stein Emil. 2006. The hordaland homocysteine study: A community-based study of homocysteine, its determinants, and associations with disease. Journal of Nutrition. 136. 1731-1740.
  • Haga, Hans-Jacob; Gjesdal, Clara Gram; Irgens, Lorentz M; Østensen, Monica. 2005. Reproduction and gynaecological manifestations in women with primary Sjögren’s syndrome: a case-control study. Scandinavian Journal of Rheumatology. 34: 45-48. doi: 10.1080/03009740510017959
  • Haga, Hans-Jacob; Gjesdal, Clara Gram; Irgens, Lorentz; Østensen, Mona. 2005. Reproduction and gynaecological manifestations in women with primary Sjogren's syndrome: a case-control study. Scandinavian Journal of Rheumatology. 34: 45-48.
  • Haga, Hans-Jacob; Gjesdal, Clara Gram; Koksvik, Hege Svean; Skomsvoll, Johan Fredrik; Irgens, Lorentz M; Østensen, Monica. 2005. Pregnancy outcome in patients with Primary Sjögren's Syndrome. A Case-Control Study. Journal of Rheumatology. 32: 1734-1736.
  • Haga, Hans-Jacob; Gjesdal, Clara Gram; Koksvik, Hege Svean; Skomsvoll, Johan Fredrik; Irgens, Lorentz; Østensen, Monika. 2005. Pregnancy outcome in patients with primary Sjögren's syndrome. A case-control study. Journal of Rheumatology. 32: 1734-1736.
  • Gjesdal, Clara Gram; Aanderud, Sylvi; Haga, Hans Jacob; Brun, Johan G; Tell, Grethe S. 2004. Femoral and whole-body bone mineral density in middle-aged and older Norwegian men and women: suitability of the reference values. Osteoporosis International. 15: 525-534.
  • Våge, Villy; Gjesdal, Clara Gram; Eide, G.E.; Halse, Johan; Viste, Asgaut. 2004. Bone Mineral Density in Females after Jejunoileal Bypass: A 25-year Folow-up Study. Obesity Surgery. 14: 305-312.
Reports and theses
  • Gjesdal, Clara Gram. 2007. Epidemiological studies of osteoporosis in Hordaland. Issues related to body composition and B-vitamins.

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