Autor:	Peters, Tim J., Graham, Anna, Salisbury, Chris, Moore, Laurence, Underwood, Martin, Eldridge, Sandra, Gibson, Peter G., Shah, Smita, Sindhusake, Doungkarnol, Wang, Han, Peat, Jennifer K., Henry, Richard L.
Zdroj:	BMJ: British Medical Journal, 2001 Jul . 323(7304), 110-111.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/25467378 Zobrazit plný text záznamu