APA
Von Korff M., Korff M. V., Saunders K., Thomas Ray G., Boudreau D., Campbell C., Merrill J., Sullivan M. D., Rutter C. M., Silverberg M. J., Banta-Green C. & Weisner C. (20080818). De facto long-term opioid therapy for noncancer pain. : The Clinical journal of pain.
Chicago
Von Korff Michael, Korff Michael Von, Saunders Kathleen, Thomas Ray Gary, Boudreau Denise, Campbell Cynthia, Merrill Joseph, Sullivan Mark D, Rutter Carolyn M, Silverberg Michael J, Banta-Green Caleb and Weisner Constance. 20080818. De facto long-term opioid therapy for noncancer pain. : The Clinical journal of pain.
Harvard
Von Korff M., Korff M. V., Saunders K., Thomas Ray G., Boudreau D., Campbell C., Merrill J., Sullivan M. D., Rutter C. M., Silverberg M. J., Banta-Green C. and Weisner C. (20080818). De facto long-term opioid therapy for noncancer pain. : The Clinical journal of pain.
MLA
Von Korff Michael, Korff Michael Von, Saunders Kathleen, Thomas Ray Gary, Boudreau Denise, Campbell Cynthia, Merrill Joseph, Sullivan Mark D, Rutter Carolyn M, Silverberg Michael J, Banta-Green Caleb and Weisner Constance. De facto long-term opioid therapy for noncancer pain. : The Clinical journal of pain. 20080818.