A cluster randomized-controlled trial to determine the effectiveness of Stepping Stones in preventing HIV infections and promoting safer sexual behaviour amongst youth in the rural Eastern Cape, South Africa: trial design, methods and baseline findings
2006 ◽
Vol 11
(1)
◽
pp. 3-16
◽
2012 ◽
Vol 65
(12)
◽
pp. 1249-1252
◽