Heterarchy and hierarchy: a critical appraisal of the "levels of evidence" as a tool for clinical decision making.
Tickle-Degnen
Linda
L
Department of Occupational Therapy, Sargent College of Health and Rehabilitation Sciences, Boston University, 630 Commonwealth Avenue, Boston, Massachusetts 02215, USA tickle@bu.edu
Bedell
Gary
G
D003661:Decision Support Techniques; D019317:Evidence-Based Medicine; D006801:Humans; D009788:Occupational Therapy / Q000592:standards*; D018802:Patient-Centered Care / Q000592:standards*; D014481:United States