Autor:	Betts, Tim, Markman, Diana, Debenham, Susan, Mortiboy, Deborah, McKevitt, Theresa
Zdroj:	British Medical Journal (Clinical Research Edition), 1984 Jan . 288(6413), 281-282.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/29513841 Zobrazit plný text záznamu