Autor:	O'Driscoll, John, Anderson, David C., Golland, I., Elstein, M., Conway, G. S., Jacobs, H. S., Toms, Graham C., Monson, John P., Sheehan-Dare, R. A.
Zdroj:	BMJ: British Medical Journal, 1990 Nov . 301(6762), 1215-1216.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/29709634 Zobrazit plný text záznamu