APA

Grosset A. B., Roberts M. S., Woodson M. E., Shi M., Swanton R. E., Reder R. F. & Buckley B. J. (20050831). Comparative efficacy of oral extended-release hydromorphone and immediate-release hydromorphone in patients with persistent moderate to severe pain: two randomized controlled trials. : Journal of pain and symptom management.

Chicago

Grosset Alan B, Roberts Michael S, Woodson Mark E, Shi Minggao, Swanton Ruth E, Reder Robert F and Buckley Barbara J. 20050831. Comparative efficacy of oral extended-release hydromorphone and immediate-release hydromorphone in patients with persistent moderate to severe pain: two randomized controlled trials. : Journal of pain and symptom management.

Harvard

Grosset A. B., Roberts M. S., Woodson M. E., Shi M., Swanton R. E., Reder R. F. and Buckley B. J. (20050831). Comparative efficacy of oral extended-release hydromorphone and immediate-release hydromorphone in patients with persistent moderate to severe pain: two randomized controlled trials. : Journal of pain and symptom management.

MLA

Grosset Alan B, Roberts Michael S, Woodson Mark E, Shi Minggao, Swanton Ruth E, Reder Robert F and Buckley Barbara J. Comparative efficacy of oral extended-release hydromorphone and immediate-release hydromorphone in patients with persistent moderate to severe pain: two randomized controlled trials. : Journal of pain and symptom management. 20050831.