Volume 26.1, Issue 51, October 1991, Pages 124-137
N.A. EL-WANIS; F.S. EL-DERHALLI; A.M. NASSAR; ELHAM EL-EBLAR Y; SALWA EL-ASELY; FEKRIA EL-BORDENI; NADIA HASSAN; NARGES BARHOUMA
Volume 25.2, Issue 50, July 1991, Pages 80-89
N.A. EL-WANIS; F.S. EL-DERHALLI; A.M. NASSAR; ELHAM EL-BIARy; FAKRIA EL-BORDENI; SALWA EL-ASIL Y; NADIA HASAN; NARGIS M. BARHOUMA