@article{f7957d3d170a406984c1d428b5c1d08e,
title = "The Catch-22 of appraisals on the quality of observational studies",
keywords = "Econometric and Statistical Methods: General, Geneeskunde (GENK), Geneeskunde(GENK), Medical sciences, Bescherming en bevordering van de menselijke gezondheid",
author = "R.H.H. Groenwold and M.M. Rovers",
year = "2010",
doi = "10.1016/j.jclinepi.2010.04.013",
language = "English",
volume = "63",
pages = "1059--1060",
journal = "Journal of Clinical Epidemiology",
issn = "0895-4356",
publisher = "Elsevier",
number = "10",
}