TY - JOUR A1 - Helleringer, S. A1 - Kohler, H.-P. T1 - Cross-sectional research design and relatively low HIV incidence, rather than blood exposures, explain the peripheral location of HIV cases within the sexual networks observed on Likoma Y1 - 2008 DO - 10.1097/QAD.0b013e3282fc733b JF - AIDS VL - 22 IS - 11 SP - 1378 EP - -1379 ER -