RT Journal Article SR Electronic T1 Should healthy people take a multivitamin? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 656 OP 657 DO 10.3949/ccjm.77a.10070 VO 77 IS 10 A1 Benjamin Caballero YR 2010 UL http://www.ccjm.org/content/77/10/656.abstract AB