High-income economies

Hu, T.W., Bai, J., Keeler, T.E. et al. 1994

Warner, K.E., Fulton, G.A. 1994

Torabi, M.R., McAllister, L., Kotecki, J.E. 1994

Marsh, A., McKay, S. 1994

Thursby, J.G., Thursby, M.C. 1994

Simester, D., Brodie, R.J. 1994

Ohsfeldt, R.L., Boyle, R.G. 1994

Keeler, T.E., Hu, T.W., Barnett, P.G. et al. 1993

Stewart, M.J. 1993

Begay, M.E., Traynor, M.P., Glantz, S.A. 1992

Moon, R.W., Males, M.A., Nelson, D.E. 1992

Valdés, B. 1992