@article{23353bf660914ff585a9b251606d6d32,
title = "Short and long term variability of the interrupter technique under field and standardised conditions in 3-6 year old children",
author = "RMJ Beelen and HA Smit and \{van Strien\}, RT and Laurens Koopman and JE Brussee and B Brunekreef and J Gerritsen and PJFM Merkus",
year = "2003",
doi = "10.1136/thorax.58.9.761",
language = "Undefined/Unknown",
volume = "58",
pages = "761--764",
journal = "Thorax",
issn = "0040-6376",
publisher = "BMJ Publishing Group",
}