Clinical Characteristics,Severity of Illness and Its Influencing Factors in COVID-19 Patients with Diarrhea as the Initial Symptom 
ZU Ming,SHI Yanyan,NING Jing,LU Haoping,ZHAO Zhiling,CHENG Qin,SHEN Ning,GE Qinggang,DING Shigang
Chinese General Practice . 2021, (15): 1874 -1882 .  DOI: 10.12114/j.issn.1007-9572.2021.00.435