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The level of evidence and methodological quality of articles published in medical journals are important aids for clinicians in decision-making and also affect journals' impact factor. Although systematic reviews (SR) are considered to represent the highest level of evidence, their methodological quality is not homogeneous and they need to be as carefully assessed as other types of study. This study aimed to assess the design and level of evidence of articles published in 2007, in two recently indexed Brazilian journals (Clinics and Revista da Associação Médica Brasileira), and to evaluate the methodological quality of the SRs.

Design and level of evidence of studies published in two Brazilian medical journals recently indexed in the ISI Web of Science database