Autor:	Meyer, Julienne, Backhouse, Elizabeth, Dawson, Cathryn, Hickey, Wendy, Heslop, Angela, Silverthorne, Patricia, Prentice, Gwen M., Wills, Lesley A. M.
Zdroj:	British Medical Journal (Clinical Research Edition), 1981 Nov . 283(6304), 1469-1470.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/29504462 Zobrazit plný text záznamu