TY - JOUR A1 - Crampin, A.C. A1 - Glynn, J.R. A1 - Ngwira, B.M. A1 - Mwaungulu, F.D. A1 - Pönnighaus, J.M. A1 - Warndorff, D.K. A1 - Fine, P.E. T1 - Trends and measurement of HIV prevalence in northern Malawi Y1 - 2003 DO - 10.1097/00002030-200308150-00011 VL - 17 IS - 12 ER -