Volume 12, Issue 1, June 2003, Pages 44-50
Mohamed El-Seweidy; Fatma Abdallah; Rawia Amin; Atef Abdelbaky
Volume 8, Issue 2, December 1999, Pages 18-21
Mohamed El-Seweidy; Sousou Ali; Samy Saleh; Dina Abo El-Maaty