Dalia Ismail Attia creator preparation. Ahmed Mohamed Zaghloul thesis advisor. Mohamed Mahmoud EL-Batanouny thesis advisor. Shahira Soliman Gemeiy thesis advisor. Hosam EL-Din EL-Anwar Amin Abdel-Latif thesis advisor. text theses ua 1995 monographic eng ara 167 pages : illustrations ; 30 cm. + specialized By Dalia Ismail Attia; Supervisors Prof. Ahmed Mohamed Zaghloul, Prof. Mohamed Mahmoud EL-Batanouny, Prof. Dr. Shahira Soliman Gemeiy, Dr. Hosam EL-Din EL-Anwar Amin Abdel-Latif. Thesis (Ph.D)-Cairo University, 1995. Bibliography: pages 134-167. Industrial Medicine And Occupational Diseases EG-GICUC 260625 20260625113438.0 eng