Key points are not available for this paper at this time.
Sohail Agha, A Quasi-Experimental Study to Assess the Impact of Four Adolescent Sexual Health Interventions in Sub-Saharan Africa, International Family Planning Perspectives, Vol. 28, No. 2 (Jun., 2002), pp. 67-70+113-118
Sohail Agha (2002) studied this question.