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Polish Journal of Surgery > 2019 > 91(5) > 5-11
Comparative Professional Pedagogy > 2007 > 79 > 9 > 610-613
Polish Journal of Surgery > 2007 > 79 > 9 > 610-613
Polish Journal of Surgery > 2019 > 91(5) > 5-11
Comparative Professional Pedagogy > 2007 > 79 > 9 > 610-613
Polish Journal of Surgery > 2007 > 79 > 9 > 610-613