Παραπομπή APA

Ma, K., Wei, X., Dong, D., Wu, Y., Geng, Q., & Li, E. (2017). PD-L1 and PD-1 expression correlate with prognosis in extrahepatic cholangiocarcinoma. Oncol Lett.

Παραπομπή Chicago Style

Ma, Ke, Xin Wei, Danfeng Dong, Yinying Wu, Qianqian Geng, και Enxiao Li. "PD-L1 and PD-1 Expression Correlate With Prognosis in Extrahepatic Cholangiocarcinoma." Oncol Lett 2017.

Παραπομπή MLA

Ma, Ke, et al. "PD-L1 and PD-1 Expression Correlate With Prognosis in Extrahepatic Cholangiocarcinoma." Oncol Lett 2017.

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