Prevalence of unfavorable outcome in acute poisoning and associated factors at the University of Gondar comprehensive specialized hospital, Gondar, Northwest Ethiopia: a hospital-based cross-sectional study

贡德尔大学综合专科医院（位于埃塞俄比亚西北部贡德尔市）急性中毒不良结局发生率及相关因素：一项基于医院的横断面研究