By vgreene, 30 January, 2015 C:Recommendations for pt care derived from case series/reports or expert consensus
By vgreene, 30 January, 2015 B:Recommendations for pt care supported by ≥1 retrospective, observational studies or consensus of case series/reports
By vgreene, 30 January, 2015 A:Generally accepted principles for pt care derived from ≥1 RCTs or multiple, retrospective observational studies