Opioids for cancer pain - an overview of Cochrane reviews
Wiffen PJ., Wee B., Derry S., Bell RF., Moore RA.
© 2017 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. This is a protocol for a Cochrane Review (Overview). The objectives are as follows: To provide an overview of the analgesic efficacy of opioids in cancer pain, and to report on adverse events associated with their use.