RT Journal Article SR Electronic T1 Lecture Notes on Clinical Medicine by David Rubenstein and David Wayne JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 64 OP 65 VO 54 IS 1 A1 Arif Z. Chaudhry YR 1987 UL http://www.ccjm.org/content/54/1/64.4.abstract AB