[1] Univ Calif Riverside, Dept Biochem, Riverside, CA 92521 USA
[2] Univ Calif Riverside, Div Biomed Sci, Riverside, CA 92521 USA
[3] Lab Gen Endocrinol Onderwijs & Navorsing, B-3000 Louvain, Belgium
[4] Univ Saskatchewan, Coll Pharm & Nutr, Saskatoon, SK S7N 5C9, Canada
[5] Univ Toronto, Mt Sinai Hosp, Dept Nutr Sci, Bone & Mineral Lab, Toronto, ON M5G 1X5, Canada
[6] Univ Toronto, Mt Sinai Hosp, Dept Lab Med & Pathobiol, Bone & Mineral Lab, Toronto, ON M5G 1X5, Canada
[7] VU Univ, Ctr Med, Dept Endocrinol, NL-1007 MB Amsterdam, Netherlands