Autor:	Hoy, A. M., Gullick, David, Zachary, R. B., Rowe, L. F. W., Kirkham, Stephen, Baines, M., Simms, Madeleine, Brooks, David, Pilling, H. H., Havard, J. D. J.
Zdroj:	British Medical Journal (Clinical Research Edition), 1982 Mar . 284(6319), 898-900.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/29500039 Zobrazit plný text záznamu