[1] Oslo Univ Hosp, Dept Clin & Biomed Engn, Oslo, Norway
[2] Oslo Univ Hosp, Dept Endocrinol Morbid Obes & Prevent Med, Oslo, Norway
[3] Oslo Univ Hosp, Dept Organ Transplantat, Oslo, Norway
[4] Univ Oslo, Oslo, Norway
[5] UiT Arctic Univ Norway, Fac Hlth Sci, Metab & Renal Res Grp, Tromso, Norway
[6] Trondheim Reg & Univ Hosp, St Olavs Hosp, Dept Endocrinol, Trondheim, Norway
[7] NTNU Norwegian Univ Sci & Technol, Dept Clin & Mol Med, Trondheim, Norway
[8] Oslo Univ Hosp, Norwegian Natl Advisory Unit Womens Hlth, Oslo, Norway
[9] Univ Oslo, Dept Phys, Oslo, Norway