Petticrew, MarkSemple, SeanHilton, ShonaCreely, Kaen SEadie, DouglasRitchie, DeborahFerrell, CatherineChristopher, YvetteHurley, Fintan2014-11-102014-11-102007-08-10Petticrew, M, Semple, S, Hilton, S, Creely, K S, Eadie, D, Ritchie, D, Ferrell, C, Christopher, Y & Hurley, F 2007, 'Covert observation in practice : lessons from the evaluation of the prohibition of smoking in public places in Scotland', BMC Public Health, vol. 7, 204. https://doi.org/10.1186/1471-2458-7-204http://hdl.handle.net/2164/38418257998engSDG 3 - Good Health and Well-beingsocial desirability biascigarette-smokingimpactworkRA0421 Public health. Hygiene. Preventive MedicineRA0421Covert observation in practice : lessons from the evaluation of the prohibition of smoking in public places in ScotlandJournal article10.1186/1471-2458-7-2047