RT Journal Article SR Electronic T1 Controlled Hypotension in the Surgical Treatment of Certain Cases of Patent Ductus Arteriosus JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 169 OP 175 VO 21 IS 3 A1 Groves, Laurence K. A1 Effler, Donald B. A1 Sones, F. Mason YR 1954 UL http://www.ccjm.org/content/21/3/169.abstract AB