Li, L., Gan, Y., Wu, C., Qu, X., Sun, G., & Lu, Z. (2015). Coffee consumption and the risk of gastric cancer: A meta-analysis of prospective cohort studies. BMC Cancer.
Citação norma ChicagoLi, Liqing, Yong Gan, Chunmei Wu, Xianguo Qu, Gang Sun, and Zuxun Lu. "Coffee Consumption and the Risk of Gastric Cancer: A Meta-analysis of Prospective Cohort Studies." BMC Cancer 2015.
MLA引文Li, Liqing, et al. "Coffee Consumption and the Risk of Gastric Cancer: A Meta-analysis of Prospective Cohort Studies." BMC Cancer 2015.
警告:這些引文格式不一定是100%准確.