[1] Merck Res Labs, Rahway, NJ USA
[2] Merck Res Labs, Brussels, Belgium
[3] St Vincent Hosp, Vienna, Austria
[4] Hop Cantonal Univ Geneva, Geneva, Switzerland
[5] Oregon Osteoporosis Ctr, Portland, OR USA
[6] City Hosp Nottingham, Nottingham, England
[7] Michigan Bone & Mineral Ctr, Detroit, MI USA
[8] UNSW, St Vincents Hosp, Garvan Inst Med Res, Sydney, NSW, Australia
[9] Univ Auckland, Auckland 1, New Zealand