RT Journal Article SR Electronic T1 New practice guidelines: Constrained or enhanced by the evidence? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 136 OP 138 DO 10.3949/ccjm.81b.03014 VO 81 IS 3 A1 Mandell, Brian F. YR 2014 UL http://www.ccjm.org/content/81/3/136.abstract AB