Citação norma APA

Zhang, H., Liao, Y., Gong, J., Liu, J., Xia, X., & Zhang, H. (2020). Clinical characteristics of coronavirus disease (COVID-19) patients with gastrointestinal symptoms: A report of 164 cases. Dig Liver Dis.

Citação norma Chicago

Zhang, Hu, Yu-Sheng Liao, Jing Gong, Jing Liu, Xi Xia, and Heng Zhang. "Clinical Characteristics of Coronavirus Disease (COVID-19) Patients With Gastrointestinal Symptoms: A Report of 164 Cases." Dig Liver Dis 2020.

Citação norma MLA

Zhang, Hu, et al. "Clinical Characteristics of Coronavirus Disease (COVID-19) Patients With Gastrointestinal Symptoms: A Report of 164 Cases." Dig Liver Dis 2020.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.