The development of national multisectoral action plans for the prevention and control of noncommunicable diseases: experiences of national-level stakeholders in four countries oleh Kremlin Wickramasinghe, Elizabeth Wilkins, Charlie Foster, Ibtihal Fadhil, Asmus Hammerich, Slim Slama, Hicham El Berri, Manal Elimam, Salim Adib, Mona Al-Mudwahi, Nick Townsend