RT Journal Article SR Electronic T1 Guide to Clinical Preventive Services by Robert S. Lawrence, MD, Chairman JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 401 OP 402 VO 57 IS 4 A1 Lang, Richard S. YR 1990 UL http://www.ccjm.org/content/57/4/401.2.abstract AB