Population-based research in South Wales : the MRC pneumoconiosis research unit and the MRC epidemiology unit / [edited by A.R. Ness, L.A. Reynolds, E.M. Tansey. Introduction by George Davey Smith].

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Population-based research in South Wales : the MRC pneumoconiosis research unit and the MRC epidemiology unit / [edited by A.R. Ness, L.A. Reynolds, E.M. Tansey. Introduction by George Davey Smith]. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.