A case report of Hirschsprung's disease presenting as sigmoid volvulus and literature review, Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia

埃塞俄比亚亚的斯亚贝巴 Tikur Anbessa 专科医院以乙状结肠扭转为主的先天性巨结肠一例报告及文献复习