TY - JOUR T1 - Race and ethnicity in STD analyses. JF - Sexually Transmitted Infections JO - Sex Transm Infect SP - 2 LP - 3 VL - 74 IS - 1 AU - M W Ross Y1 - 1998/02/01 UR - http://sti.bmj.com/content/74/1/2.abstract ER -