[1] St Luc Univ Hosp, Arthritis Unit, Brussels, Belgium
[2] Eli Lilly & Co, Lilly Res Labs, Indianapolis, IN 46285 USA
[3] Univ Alabama, Birmingham, AL USA
[4] IDIM, Buenos Aires, DF, Argentina
[5] McGuire VA Med Ctr, Richmond, VA USA
[6] Univ Sheffield, Acad Unit Bone Metab, Sheffield, S Yorkshire, England