@article{12c736e536df443c86d7d195a5408d8e,
title = "Difficulties in diagnosing acute sinusitis in a Dutch group practice - Relative value of history, radiography and ultrasound",
keywords = "Econometric and Statistical Methods: General, Geneeskunde(GENK), Algemeen onderzoek, Immunology",
author = "W.A.B. Stalman and {van Essen}, G.A. and J.W. Gubbels and {de Melker}, R.A.",
year = "1997",
language = "Undefined/Unknown",
volume = "3",
pages = "12--15",
journal = "European Journal of General Practice",
issn = "1381-4788",
publisher = "Informa Healthcare",
}