Czito, B. G., Ahmed, S., Kalady, M. F., & Eng, C. (2018). Cancer of the anal region. In DeVita, Hellman, and Rosenberg’s Cancer: Principles & Practice of Oncology (pp. 997–1013).

Czito, B. G., S. Ahmed, M. F. Kalady, and C. Eng. “Cancer of the anal region.” In DeVita, Hellman, and Rosenberg’s Cancer: Principles & Practice of Oncology, 997–1013, 2018.

Czito BG, Ahmed S, Kalady MF, Eng C. Cancer of the anal region. In: DeVita, Hellman, and Rosenberg’s Cancer: Principles & Practice of Oncology. 2018. p. 997–1013.

Czito, B. G., et al. “Cancer of the anal region.” DeVita, Hellman, and Rosenberg’s Cancer: Principles & Practice of Oncology, 2018, pp. 997–1013.

Czito BG, Ahmed S, Kalady MF, Eng C. Cancer of the anal region. DeVita, Hellman, and Rosenberg’s Cancer: Principles & Practice of Oncology. 2018. p. 997–1013.