Citação norma APA

Cryer, B., Katz, S., Vallejo, R., Popescu, A., & Ueno, R. (2014). A Randomized Study of Lubiprostone for Opioid-Induced Constipation in Patients with Chronic Noncancer Pain. Pain Med.

Citação norma Chicago

Cryer, Byron, Seymour Katz, Ricardo Vallejo, Anca Popescu, and Ryuji Ueno. "A Randomized Study of Lubiprostone for Opioid-Induced Constipation in Patients With Chronic Noncancer Pain." Pain Med 2014.

Citação norma MLA

Cryer, Byron, et al. "A Randomized Study of Lubiprostone for Opioid-Induced Constipation in Patients With Chronic Noncancer Pain." Pain Med 2014.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.