Pol, Louis G.
The demography of health and health care
Plenum Press, 1992
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Twisk, Jos W.R.
Applied multilevel analysis: a practical guide
Cambridge University Press, 2006
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Kennedy, Peter
A guide to econometrics
Blackwell, 2008
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Johnson, Aaron C.
Econometrics basic and applied
Macmillan, 1989
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Hicks, Lanis L.
Economics of health and medical care
Jones & Bartlett Learning, 2014
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