Volume 19.1, Issue 37, September 1987, Pages 189-195
A.A. BASSIOUNI; M.H.H. AWAĄD; M.M. AMER; SAFAA YASSIEN; MANAL A.A. AFIFI
Volume 18.2, Issue 36, May 1987, Pages 118-123
M. EL-SERGANY; ANN MORSY; NABIHA RAMADAN; SAFAA YASSIEN; MONA MEHRIS