[1] Univ Malaya, Kuala Lumpur, Malaysia
[2] Vrije Univ, Med Ctr, Amsterdam, Netherlands
[3] Merck & Co Inc, MRL, Rahway, NJ 07065 USA
[4] Hosp Berne, Bern, Switzerland
[5] Ctr Diag & Pesq Osteoporose Espirito Santo Vitori, Vitoria, Brazil
[6] Hop Edouard Herriot, Ctr Prevent Osteoporose, Lyon, France
[7] City Hosp Nottingham, Nottingham, England