title: [The study of QRS loop in spontaneous pneumothorax (author's transl)].
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008961:Models, Structural; D011030:Pneumothorax / Q000503:physiopathology*; D014672:Vectorcardiography