RT Journal Article SR Electronic T1 Bilateral thoracic sympathectomy-splanchnicectomy in the treatment of intractable pain due to pancreatic carcinoma JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 185 OP 188 VO 41 IS 4 A1 Edward S. Sadar A1 Avram M. Cooperman YR 1974 UL http://www.ccjm.org/content/41/4/185.abstract AB