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