Primary versus secondary source of data in observational studies and heterogeneity in meta-analyses of drug effects: A survey of major medical journals
- Prada-Ramallal, G.
- Roque, F.
- Herdeiro, M.T.
- Takkouche, B.
- Figueiras, A.
Zeitschrift:
BMC Medical Research Methodology
ISSN: 1471-2288
Datum der Publikation: 2018
Ausgabe: 18
Nummer: 1
Art: Rezension
