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. 2014 Sep 23;15:160. doi: 10.1186/1471-2296-15-160

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© van Melle et al.; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Flowchart of respondents throughout the two waves of the study. T1 had a total of N = 410 respondents, at T2 (the time of this study) 172 respondents participated in the interviews. 106 medical records were collected. PH = residence permit holders.