TY - JOUR A1 - Bell, D.C. A1 - Montoya, I.D. A1 - Atkinson, J.S. T1 - Partner concordance in reports of joint risk behaviors Y1 - 2000 JF - Journal of the Acquired Immune Deficiency Syndromes VL - 25 IS - 2 SP - 173 EP - -181 ER -