Compliance of clinical trial registries with the World Health Organization minimum data set: a survey

by Dickersin Kay, Chan An-Wen, Grimshaw Jeremy M, Liberati Alessandro, Compagnoni Anna, Nurbhai Munira, Moschetti Ivan, Moja Lorenzo P, Krleza-Jeric Karmela, Moher David, Sim Ida, Volmink Jimmy
Published 2009-07-01