Reporting of methodologic information on trial registries for quality assessment: a study of trial records retrieved from the WHO search portal.

por Ludovic Reveiz, An-Wen Chan, Karmela Krleza-Jerić, Carlos Eduardo Granados, Mariona Pinart, Itziar Etxeandia, Diego Rada, Monserrat Martinez, Xavier Bonfill, Andrés Felipe Cardona
Publicado 2010