Cita APA

Wiffen, P. J., Wee, B., Derry, S., Bell, R. F., & Moore, R. A. (2017). Opioids for cancer pain ‐ an overview of Cochrane reviews. Cochrane Database Syst Rev.

Chicago Style Citation

Wiffen, Philip J., Bee Wee, Sheena Derry, Rae Frances Bell, i R Andrew Moore. "Opioids for Cancer Pain ‐ an Overview of Cochrane Reviews." Cochrane Database Syst Rev 2017.

Cita MLA

Wiffen, Philip J., et al. "Opioids for Cancer Pain ‐ an Overview of Cochrane Reviews." Cochrane Database Syst Rev 2017.