title: [Observation on P wave dispersion and atrial arrhythmia of patients with coal workers' pneumoconiosis].
authors.forename: Ying
authors.initials: Y
authors.lastname: Boa
authors.forename: De-Jun
authors.initials: DJ
authors.lastname: Wang
mesh_terms: D000368:Aged; D055008:Anthracosis / Q000503:physiopathology*; D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D016022:Case-Control Studies; D004562:Electrocardiography; D006801:Humans; D008875:Middle Aged