Ovid Technologies, Inc, DeVita, V. T., Jr., Lawrence, T. S., & Rosenberg, S. A. (2021). Cancer: Principles & practice of oncology (Third edion.). Wolters Kluwer.

Ovid Technologies, Inc, Vincent T. DeVita, Jr, Theodore S. Lawrence, and Steven A. Rosenberg. Cancer: Principles & Practice of Oncology. Third edion. [Philadelphia]: Wolters Kluwer, 2021.

Ovid Technologies, Inc, et al. Cancer: Principles & Practice of Oncology. Third edion. Wolters Kluwer, 2021.