title: [Effect of the curriculum in the reformed primary and secondary schools on the students' circulatory systems].
mesh_terms: D001775:Blood Circulation; D002648:Child; D003479:Curriculum; D006801:Humans; D008297:Male; D009200:Myocardial Contraction; D011044:Poland; D013315:Stress, Psychological / Q000503:physiopathology*; D013334:Students
vernacular_title: Badanie wplywu zajeć w zreformowanej szkole ogólnoksztalcacej na uklad krazenia uczniów klas pierwszych.