Methods for obtaining unpublished data.

BACKGROUND: In order to minimise publication bias, authors of systematic reviews often spend considerable time trying to obtain unpublished data. These include data from studies conducted but not published (unpublished data), as either an abstract or full-text paper, as well as missing data (data a...

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Dades bibliogràfiques
Autors principals: Young, T, Hopewell, S
Format: Journal article
Idioma:English
Publicat: 2011