RT Journal Article SR Electronic T1 Aspirin in primary prevention of cardiovascular events: Key questions remain JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 270 OP 271 DO 10.3949/ccjm.90b.05023 VO 90 IS 5 A1 Brian F. Mandell YR 2023 UL http://www.ccjm.org/content/90/5/270.abstract AB