title: [A comparison of echocardiograms recorded at high altitude and at sea level in 25 cases (author's transl)].
mesh_terms: D000328:Adult; D000531:Altitude; D002681:China; D004452:Echocardiography; D005260:Female; D006321:Heart / Q000502:physiology*; D006801:Humans; D008297:Male