The concentration of sexual behaviours in the USA: a closer examination of subpopulations.
Leichliter
Jami S
JS
Division of STD Prevention, Centers for Disease Control and Prevention, 1600 Clifton Road MS E-44, Atlanta, GA 30333, USA. jleichliter@cdc.gov
Chesson
Harrell W
HW
Sternberg
Maya
M
Aral
Sevgi O
SO