Primary versus secondary source of data in observational studies and heterogeneity in meta-analyses of drug effects: A survey of major medical journals

  1. Prada-Ramallal, G.
  2. Roque, F.
  3. Herdeiro, M.T.
  4. Takkouche, B.
  5. Figueiras, A.
Revista:
BMC Medical Research Methodology

ISSN: 1471-2288

Ano de publicación: 2018

Volume: 18

Número: 1

Tipo: Revisión

DOI: 10.1186/S12874-018-0561-3 GOOGLE SCHOLAR lock_openAcceso aberto editor

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