The requested data are part of the dataset established by the International Platform Registry established by the World Health Organization (WHO) and the International Committee of Medical Journal Editors. Besides RPECEC requests other data that contribute to transparency in research and to the quality assurance of the displayed data. Those fields that are considered mandatory appear in the forms in a red color flag.

To facilitate the understanding of how to complete each field RPCEC provides the document "Definiciones del RPCEC"