Re: Should meta-analyses of interventions include observational studies in addition to randomized controlled trials? A critical examination of underlying principles.
Pereira
Carlos
C
Castilho
Euclides
E
D015982:Bias; D015986:Confounding Factors, Epidemiologic; D036262:Empirical Research; D016021:Epidemiologic Studies; D006801:Humans; D015201:Meta-Analysis as Topic; D017410:Practice Guidelines as Topic; D016032:Randomized Controlled Trials as Topic