TY  - JOUR
A1  - Magnani, R.
A1  - Sabin, K.
A1  - Saidel, T.
A1  - Heckathorn, D.D. 
T1  - Review of sampling hard-to-reach and hidden populations for HIV surveillance
Y1  - 2005
DO  - 10.1097/01.aids.0000172879.20628.e1
JF  - AIDS
VL  - 19
IS  - Suppl. 2
SP  - S67
EP  - -S72

ER  -