TY  - JOUR
A1  - Gaydosh, L.
A1  - Reniers, G.
A1  - Helleringer, S. 
T1  - Partnership Concurrency and Coital Frequency
Y1  - 2013
DO  - 10.1007/s10461-013-0525-x
JF  - AIDS and Behavior 
VL  - 17
IS  - 7

ER  -