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Does drinking affect long-term sickness absence? A sample selection approach correcting for employment and accounting for drinking history
Jarl, J., (2012)
Internal markets and health care efficiency: a multiple-output stochastic frontier analysis
Gerdtham, U.-G., (1999)
On stationarity and cointegration of international health expenditure and GDP
Gerdtham, Ulf-G., (2000)