APA (7th ed.) Citation

Mercadante, S., & Bruera, E. (2016). Opioid switching in cancer pain: From the beginning to nowadays. Critical reviews in oncology/hematology, 99, 241-248. https://doi.org/10.1016/j.critrevonc.2015.12.011

Chicago Style (17th ed.) Citation

Mercadante, Sebastiano, and Eduardo Bruera. "Opioid Switching in Cancer Pain: From the Beginning to Nowadays." Critical Reviews in Oncology/hematology 99 (2016): 241-248. https://doi.org/10.1016/j.critrevonc.2015.12.011.

MLA (9th ed.) Citation

Mercadante, Sebastiano, and Eduardo Bruera. "Opioid Switching in Cancer Pain: From the Beginning to Nowadays." Critical Reviews in Oncology/hematology, vol. 99, 2016, pp. 241-248, https://doi.org/10.1016/j.critrevonc.2015.12.011.