TY - GEN AU - Mohammed Abduh Ragab Elnashar AU - Abdelaziz Elsayed Abdelaziz Khamis , AU - kaiss Abdeldayem Aboulata , AU - Salwa Mohammed Fathy , TI - Study of external anal sphincter defects by endoanal ultrasonography before and after surgery / PY - 2001/// CY - Cairo : PB - Mohammed Abduh Ragab Elnashar , KW - Anal canal KW - Anal continence KW - Anal incontinence N1 - Thesis (M.Sc.) - Cairo University - Faculty Of Medicine - Department Of General Surgery UR - http://172.23.153.220/th.pdf ER -