Volume 29.2, Issue 58, July 1993, Pages 159-164
M.A. ALI; A.S. SALEH; S.M. SELEIM; H.A. YOUSSEF; SANA S. KROOSH
Volume 29.2, Issue 58, July 1993, Pages 166-176
H.A. YOUSSEF; S.M. SELIEM; D. TAHA
Volume 29.2, Issue 58, July 1993, Pages 191-197
S.M. SELEIM; H.A. YOUSSEF; A.M. ALI; A.S. SALEH; SANA S. KROOSH
Volume 29.1, Issue 57, April 1993, Pages 215-226
H.A. YOUSSEF
Volume 28.2, Issue 56, January 1993, Pages 272-276
M.A. ALI; A.S. SALEH; H.A. YOUSSEF
Volume 28.2, Issue 56, January 1993, Pages 277-282
H.A. YOUSSEF; M.A. ALI; A.S. SALEH
Volume 28.2, Issue 56, January 1993, Pages 283-296
M.A. ALI; A.S. SALEH; H.A. YOUSSEF; SAMIA, M. SELEIM
Volume 27.2, Issue 54, July 1992, Pages 1-6
ME. ABD EL-MONIEM; H.A. YOUSSEF
Volume 27.2, Issue 54, July 1992, Pages 236-241
SAMIA M. SELEIM; M.A. SELEIM; H.A. YOUSSEF; S. ABDALLA
Volume 27.1, Issue 53, April 1992, Pages 238-240
H.A. YOUSSEF; SAMIA M. SELIEM
Volume 26.2, Issue 52, January 1992, Pages 220-225
H.A. YOUSSEF
Volume 26.2, Issue 52, January 1992, Pages 226-229
H.A. YOUSSEF; F.A. MAKADY; I.H. AH MED
Volume 26.1, Issue 51, October 1991, Pages 250-256
M.M. KASSEM; D.R. NELSON; H.A. YOUSSEF
Volume 26.1, Issue 51, October 1991, Pages 269-275
H.A. YOUSSEF; A.H. BAYOUMI
Volume 25.2, Issue 50, July 1991, Pages 151-159
H.A. YOUSSEF; M.A. ALAM EL-DIN
Volume 25.2, Issue 50, July 1991, Pages 160-168
H.A. YOUSSEF; D.R. NELSON; M.M. KASSEM
Volume 25.2, Issue 50, July 1991, Pages 205-210
M.M. KASSEM; D.R. NELSON; H.A. YOUSSEF
Volume 25.1, Issue 49, April 1991, Pages 172-177
H.A. YOUSSEF; I.H. AHMED; F.M. MAKADY
Volume 23.2, Issue 46, July 1990, Pages 197-202
H.A. YOUSSEF; SAMIA M. SELIEM; F.M. MAKADY
Volume 23.2, Issue 46, July 1990, Pages 213-218
F.M. MAKADY; A.Z. MOHMOUD; H.A. YOUSSEF; N.H. SALEH
Volume 22.2, Issue 44, January 1990, Pages 167-173
A.S. SALEH; A. EL-SEBAIE; M.A. ALI; H.A. YOUSSEF
Volume 19.2, Issue 38, January 1988, Pages 1-6
K.E.H. ABDALLA; H.A. YOUSSEF; M.A. ALAM EL-DIN; A.A. MANSOUR
Volume 19.2, Issue 38, January 1988, Pages 19-24
K E.H. ABDALLA; A.A. MANSOUR; H.A. YOUSSEF; M.A. ALAM EL-DIN
Volume 19.2, Issue 38, January 1988, Pages 149-155
M.A. ALI; A.S. SALEH; A. EL-SEBAIE; H.A. YOUSSEF