Participation at time 1 (1997) and time 2 (2005–6) by mothers and children in Kyiv

<p><b>Copyright information:</b></p><p>Taken from "Determinants of participation in a longitudinal two-stage study of the health consequences of the Chornobyl nuclear power plant accident"</p><p>http://www.biomedcentral.com/1471-2288/8/27</p><p>BMC Medical Research Methodology 2008;8():27-27.</p><p>Published online 8 May 2008</p><p>PMCID:PMC2396662.</p><p></p