Choosing between Randomised and Non-Randomised Studies: A Systematic Review A. Britton M. McKee N. Black K. McPherson C. Sanderson C. Bain

Autor:	Campbell, M. J.
Zdroj:	BMJ: British Medical Journal, 1998 Oct . 317(7167), 1258-1258.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/25180881 Zobrazit plný text záznamu