1. University of Maryland School of Medicine (M.C.H.), Baltimore, Maryland 21201
2. University of Pittsburgh School of Medicine (S.G.), Pittsburgh, Pennsylvania 15213
3. Hawaii Osteoporosis Center (R.D.W.), Honolulu, Hawaii 96814
4. Colorado Center for Bone Research (P.M.), Denver, Colorado 80227
5. Merck & Co., Inc. (D.E.T., P.D.R.), Rahway, New Jersey 07065