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.