Meta Analysis

[Paraspinal opioids and pump systems].

Z Arztl Fortbild Qualitatssich. 1998 Jan 1;92(1):47-52.
Review

Opioids in pain management of blood-related malignancies.

Ann. Hematol. 2006 Aug 1;85(8):489-501.
Case Reports

Priapism--a rare complication following continuous epidural morphine and bupivacaine infusion.

Pain Physician. 2007 Sep 1;10(5):707-11.