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The International Journal of Health Planning and Management > 38 > 5 > 1097 - 1104
Polish Journal of Public Health > 2015 > 124 > 3 > 145-147
Polish Journal of Public Health > 2014 > 124 > 3 > 145-147
The International Journal of Health Planning and Management > 38 > 5 > 1097 - 1104
Polish Journal of Public Health > 2015 > 124 > 3 > 145-147
Polish Journal of Public Health > 2014 > 124 > 3 > 145-147