Volume 22.2, Issue 44, January 1990, Pages 26-33
NAHED E. EL-TOUKHY; MAGDA K. MICHAEL; ASMA M. NOUR; F.A. SOLIMAN
Volume 22.1, Issue 43, September 1989, Pages 18-23
HODA H. HATEM; NAHED E. EL-TOUKHY; A.A. ZAKI; ASMA M. NOUR; ESMAT S. EL-NASR; F.A. SOLIMAN