1 KNCV Tuberculosis Foundation, The Hague, The Netherlands Centre for Infectious Diseases Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands gerard.devries@kncvtbc.org.
2 KNCV Tuberculosis Foundation, The Hague, The Netherlands.
3 Dept of TB Control, Municipal Public Health Services Amsterdam, Amsterdam, The Netherlands.
4 Dept of TB Control, Municipal Public Health Services Groningen, Groningen, The Netherlands.
5 Dept of TB Control, Municipal Public Health Services Groningen, Groningen, The Netherlands Dept of TB Control, Municipal Public Health Services Rotterdam-Rijnmond, Rotterdam, The Netherlands.