Autor:	Winceslaus, Joseph, Goh, Beng T., Dunlop, Eric M. C., Mantell, Janet, Woodland, Ralph M., Forsey, Timothy, Treharne, John D.
Zdroj:	British Medical Journal (Clinical Research Edition), 1987 Nov . 295(6610), 1377-1379.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/29528977 Zobrazit plný text záznamu