RT Journal Article SR Electronic T1 No pig in a poke JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 561 OP 561 DO 10.3949/ccjm/76a.10001 VO 76 IS 10 A1 Brian F. Mandell YR 2009 UL http://www.ccjm.org/content/76/10/561.abstract AB