title: [Early stage of chronic pulmonary heart disease. Value of various electrocardiographic and mechanographic modifications].
mesh_terms: D002908:Chronic Disease; D004562:Electrocardiography; D006801:Humans; D009784:Occupational Diseases; D010701:Phonocardiography; D011658:Pulmonary Fibrosis / Q000150:complications*; D011660:Pulmonary Heart Disease / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology
vernacular_title: Stade précoce du coeur pulmonaire chronique. Intérêt de certaines modifications électrocardiographiques et mécanographiques.