Zhan, T.; Tang, Y.; Han, Z.; Zhu, Q.; Tan, J.; Liu, M.; Cai, Y.; Huang, M.; Chen, X.; Cheng, X. Clinical Characteristics of 195 Cases of COVID-19 With Gastrointestinal Symptoms COVID-19 With Gastrointestinal Symptoms. Turkish Journal of Gastroenterology 2021, 32, 148-154.