@article{67535114a4824f0683c557af90573eaf,
title = "Maxillary sinusitis in adults: an evaluation of placebo-controlled double-blind trials",
keywords = "Econometric and Statistical Methods: General, Geneeskunde(GENK), Algemeen onderzoek, Immunology",
author = "W.A.B. Stalman and {van Essen}, G.A. and {van der Graaf}, Y. and {de Melker}, R.A.",
year = "1997",
language = "Undefined/Unknown",
volume = "14",
pages = "124--129",
journal = "Family Practice",
issn = "0263-2136",
publisher = "Oxford University Press",
}