TY - JOUR A1 - Khalil, K. A1 - Atta, H. A1 - Kamel, F. A1 - Youssef, R. T1 - Determinants of the duration of lactational amenorrhoea among mothers in Alexandria Y1 - 1996 DO - 10.26719/1996.2.3.396 VL - 2 IS - 3 ER -