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van den Broek, Ingrid V F; van Bergen, Jan E A M; Brouwers, Elfi E H G; Fennema, Johannes S A; Götz, Hannelore M; Hoebe, Christian J P A; Koekenbier, Rik H; Kretzschmar, Mirjam; Over, Eelco A B; Schmid, Boris V; Pars, Lydia L; van Ravesteijn, Sander M; van der Sande, Marianne A B; de Wit, G Ardine; Low, Nicola; Op de Coul, Eline L M (2012). Effectiveness of yearly, register based screening for chlamydia in the Netherlands: controlled trial with randomised stepped wedge implementation. BMJ, 345(e4316), e4316. London: BMJ Publishing Group 10.1136/bmj.e4316
