scholarly journals Effects of the Frontiers Prevention Project in Ecuador on sexual behaviours and sexually transmitted infections amongst men who have sex with men and female sex workers: challenges on evaluating complex interventions

2013 ◽  
Vol 5 (2) ◽  
pp. 158-177 ◽  
Author(s):  
Juan Pablo Gutiérrez ◽  
Erika E. Atienzo ◽  
Stefano M. Bertozzi ◽  
Sam McPherson
AIDS Care ◽  
2011 ◽  
Vol 23 (sup1) ◽  
pp. 5-25 ◽  
Author(s):  
Adrienne N. Poon ◽  
Zhijun Li ◽  
Ning Wang ◽  
Yan Hong

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