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Dickson-Tetteh K, Pettifor A, Moleko W.Dickson-Tetteh K, et al.Reprod Health Matters. 2001 May;9(17):160-9. doi: 10.1016/s0968-8080(01)90020-5.Reprod Health Matters. 2001.PMID: 11468833Free article.