title: [Value of the P/PR segment ratio in the evaluation of the left cardiac function of children with rheumatic heart disease].
authors.affiliation: Department of Pediatrics, People's Hospital of Lengshuijiang, Lengshuijiang, Hunan 417500, China.
authors.forename: Ding-Yuan
authors.initials: DY
authors.lastname: Yue
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D009200:Myocardial Contraction; D012214:Rheumatic Heart Disease / Q000503:physiopathology*