Schneider, John A.; Zhou, A. Ning; Laumann, Edward O. - In: Social Science & Medicine 125 (2015) C, pp. 192-202
Internationally, the Peer Change Agent (PCA) model is the most frequently used conceptual framework for HIV prevention. Change agents themselves can be more important than the messages they convey. PCA selection is operationalized via heterogeneous methods based upon individual-level attributes....