Surgical trials and trial registers: a cross-sectional study of randomized controlled trials published in journals requiring trial registration in the author instructions.

Autor:	Hardt, Julia L. S.1 julia.hardt@googlemail.com, Metzendorf, Maria-Inti2 maria-inti.metzendorf@medma.uni-heidelberg.de, Meerpohl, Joerg J.3 meerpohl@cochrane.de
Zdroj:	Trials. 2013, Vol. 14 Issue 1, p1-17. 17p.
Databáze:	Academic Search Ultimate
Externí odkaz:	Zobrazit plný text záznamu