@article{d1afc9470e0b4ffe85a1de0ee5a262d9,
title = "Ascertainment of congenital anomalies - a comparison between a national and four local congenital anomaly registers in England",
author = "P Boyd and Helen Dolk and B Armstrong and D Wellesley and \{et al\}, [Unknown]",
year = "2004",
doi = "10.1002/bdra.20028",
language = "English",
volume = "70",
pages = "291",
journal = "Birth Defects Research Part A: Clinical and Molecular Teratology",
issn = "1542-0760",
publisher = "Wiley-Liss Inc.",
number = "5",
}