Allwright, Shane and Paul, G and Greiner, B and Mullally, BJ and Pursell, L and Kelly, A and Bonner, B and D'Eath, M and McConnell, B and McLaughlin, JP and O'Donovan, D and O'Kane, E and Perry, Ivan J (2005) Legislation for smoke-free workplaces and health of bar workers in Ireland: before and after study. BMJ , 331 , (7525) , p. 1117.