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Polish Journal of Surgery > 2013 > 85 > 3 > 141-144
Comparative Professional Pedagogy > 2013 > 85 > 3 > 141-144
European Journal of Cardio-Thoracic Surgery > 2002 > 21 > 1 > 133-135
Polish Journal of Surgery > 2013 > 85 > 3 > 141-144
Comparative Professional Pedagogy > 2013 > 85 > 3 > 141-144
European Journal of Cardio-Thoracic Surgery > 2002 > 21 > 1 > 133-135