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Hudson, Eibhlin and Mosca, Irene and Madden, David Patrick (2014) A formal investigation of inequalities in health behaviours after age 50 on the Island of Ireland. Dublin: University College Dublin. School of Economics.

Madden, David Patrick (2006) Sample selection versus two-part models revisited: the case of female smoking and drinking. York: Department of Economics, University of York. Health, Econometrics and Data Group (HEDG) Working Papers 06/12.