Autor:	Burton, Paul, Kurinczuk, Jennifer J., Botha, Hannes, Lowry, Adam, Sheldon, T. A., Wald, Nicholas J., Cuckle, Howard S., Densem, James W., Nanchahal, Kiran, Royston, Patrick, Chard, Tim, Haddow, James E., Knight, George J., Palomaki, Glenn E., Canick, Jacob A.
Zdroj:	BMJ: British Medical Journal, 1989 Jan 01. 298(6665), 50-50.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/29703130 Zobrazit plný text záznamu