Volume 60, Issue 142, July 2014, Pages 160-171
DIEFY SALEM; AHMED A. SHARKAWY; MANAL M. SAYED; SHEHATA, O.A.
Volume 58, Issue 133, April 2012, Pages 14-24
MANAL M. SAYED; D.A. SALEM; A.A. SHARKAWY; O.A. SHEHATA