Effectiveness versus efficacy: more than a debate over language.
Fritz
Julie M
JM
Cleland
Joshua
J
D019317:Evidence-Based Medicine / Q000379:methods; D005081:Exercise Therapy / Q000379:methods; D006801:Humans; D017116:Low Back Pain / Q000628:therapy; D026761:Physical Therapy Specialty / Q000379:methods*; D012107:Research Design / Q000592:standards*; D009626:Terminology as Topic; D016896:Treatment Outcome; D014481:United States