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Comparative Professional Pedagogy > 2010 > 82 > 4 > 219-225
Polish Journal of Surgery > 2010 > 82 > 4 > 219-225
Journal of Clinical Anesthesia > 2010 > 22 > 2 > 81-87
Comparative Professional Pedagogy > 2010 > 82 > 4 > 219-225
Polish Journal of Surgery > 2010 > 82 > 4 > 219-225
Journal of Clinical Anesthesia > 2010 > 22 > 2 > 81-87