De Wals, P., Dolk, H., Bertrand, F., Gillerot, Y., Weatherall, JAC., & Lechat, MF. (1988). [Epidemiologic Surveillance of Congenital-anomalies By the Eurocat Registry]. Revue d’Epidemiologie et de Sante Publique, 36(4-5), 273-282. https://hdl.handle.net/2078.5/88111 (Original work published 1988)