RT Journal Article SR Electronic T1 Morphine for Cancer Pain: a Voiding Problems, Dispelling Myths JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 295 OP 296 VO 58 IS 4 A1 Walsh, Oeclan YR 1991 UL http://www.ccjm.org/content/58/4/295.abstract AB