Use the filter function to narrow down the selection by region, income, publication type and/or other criteria.
Pekurinen, M. 1991
Chapman, S., Richardson, J. 1990
Chaloupka, F.J. 1990
Jones, A.M. 1989
Jones, A. 1989
Mullahy, J. 1985
Lewit, E.M., Coate, D. 1982
Cox, D.R. 1972
Cragg, J.G. 1971