Control studies on Whitehall Study cohort and follow-ups Papers relating to the data collection, analysis and organisation of control studies and clinical follow-ups for Whitehall Study cohort including organisation and data collection of clinical tests conducted for these studies; research papers for the smoking cessation study; background papers for dietary habit survey and physical activity study and papers relating to family background study of Whitehall Study I subjects on behalf of the Stress and Health Study (Whitehall Study II) investigation. 1967-1994