[1] Univ Helsinki, Cent Hosp, Div Endocrinol, FIN-00014 Helsinki, Finland
[2] Deaconess Inst Oulu, Osteoporosis Clin, Oulu, Finland
[3] Hosp Clin San Cecilio, Granada, Spain
[4] Osteosupport, Rotterdam, Netherlands
[5] Linkoping Univ Hosp, Dept Endocrinol, S-58185 Linkoping, Sweden
[6] Ctr Clin Studies AS, Paradis, Norway