The National Health Service (NHS) was born out of social reforms based on the Beveridge Report of 1942, named after William Beveridge who chaired the Inter-Departmental Committee on Social Insurance and Allied Services. Opposition from the General Medical Council delayed its formal introduction until July 1948. The Griffiths Report, published in 1983, suggested that one of the main problems with the NHS was that internal market could not benefit from the efficiencies provided by market competition, since it was the only major UK provider of healthcare. Secretary of State for Health is the Cabinet position as lead for the Department of Health in England. In Scotland it is the Cabinet Secretary for Health and Wellbeing. In Wales, it is Minister for Health and Social Services and in Northern Ireland, it is Minister of the Department of Health, Social Services and Public Safety. Chief medical officer is the most senior advisory position to the government on health matters.