Autor:	Vincent, Charles, Aylin, Paul, Franklin, Bryony Dean, Holmes, Alison, Iskander, Sandra, Jacklin, Ann, Moorthy, Krishna
Zdroj:	BMJ: British Medical Journal, 2008 Nov . 337(7680), 1205-1207.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/20511387 Zobrazit plný text záznamu