Authors: M H Wahdan; S A Sallam; M N Hassan; A Abdel Gawad; A S Rakha; J E Sippel; R Hablas; W R Sanborn; N M Kassem; S M Riad; B Cvjetanović Journal: Bull World Health Organ Date: 1977 Impact factor: 9.408
Authors: M H Wahdan; F Rizk; A M el-Akkad; A A el-Ghoroury; R Hablas; N I Girgis; A Amer; W Boctar; J E Sippel; E C Gotschlich; R Triau; W R Sanborn; B Cvjetanović Journal: Bull World Health Organ Date: 1973-06 Impact factor: 9.408