1. Categorical Data Analysis
2. Birth prevalence of congenital heart disease;Dolk;Epidemiology,2010
3. EUROCAT 2004 http://www.eurocat-network.eu/content/Special-Report-Env-Risk-I-and-II.pdf http://www.eurocat-network.eu/content/Special-Report-Env-Risk-III.pdf
4. EUROCAT 2005 http://www.eurocat-network. eu/ABOUTUS/DataCollection/GuidelinesforRegistration/Guide1_ 3InstructionManual
5. EUROCAT 2009a Special report: prevention of neural tube defects by periconceptional folic acid supplementation in Europe