Dyfyniad APA

Song, X., Song, X., Liu, K., Liu, K., Yang, S., Yang, S., . . . Hu, J. (2020). Prognostic Value of Changes in Preoperative and Postoperative Serum CA19-9 Levels in Gastric Cancer. Frontiers Media S.A.

Dyfyniad Arddull Chicago

Song, Xiao-Hai, et al. Prognostic Value of Changes in Preoperative and Postoperative Serum CA19-9 Levels in Gastric Cancer. Frontiers Media S.A, 2020.

Dyfyniad MLA

Song, Xiao-Hai, et al. Prognostic Value of Changes in Preoperative and Postoperative Serum CA19-9 Levels in Gastric Cancer. Frontiers Media S.A, 2020.

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