Saberi P, Johnson MO, McCulloch CE, Vittinghoff E, Neilands TB
Konda KA, Celentano DD, Kegeles S, Coates TJ, Caceres CF
Donnell D, Mimiaga MJ, Mayer K, Chesney M, Koblin B, Coates T
Weiser SD, Bangsberg DR, Kegeles S, Ragland K, Kushel MB, Frongillo EA
Operario D, Smith CD, Arnold E, Kegeles S