[1] UNIFORMED SERV UNIV HLTH SCI,DEPT MED,BETHESDA,MD 20014
[2] DUKE UNIV,MED CTR,CTR STUDY & AGING,DURHAM,NC 27710
[3] DUKE UNIV,MED CTR,DEPT OBSTET & GYNECOL,DURHAM,NC 27710
[4] DUKE UNIV,MED CTR,DEPT PHYSIOL,DURHAM,NC 27710
[5] DUKE UNIV,MED CTR,DEPT PHARMACOL,DURHAM,NC 27710