@article{7a62438402654befb2f0fa22e642df94,
title = "Frequency of chest radiography and abdominal ultrasound in the Netherlands: 1999-2003",
author = "A.M. Speets and S. Kalmijn and A.W. Hoes and \{van der Graaf\}, Y. and H.M. Smeets and W.P.T.M. Mali",
year = "2005",
doi = "10.1007/s10654-005-2954-y",
language = "Undefined/Unknown",
volume = "20",
pages = "1031--1036",
journal = "European Journal of Epidemiology",
issn = "0393-2990",
publisher = "Springer Science and Business Media B.V.",
number = "12",
}