title: [Preliminary observations on the echocardiographic features of 84 cases of Keshan disease (author's transl)].
mesh_terms: D009202:Cardiomyopathies / Q000503:physiopathology; D002648:Child; D004452:Echocardiography; D005260:Female; D006801:Humans; D008297:Male; D012643:Selenium / Q000172:deficiency
chemical_list: D012643:Selenium