title: [Echocardiographic studies on Wolff-Parkinson-White syndrome].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004452:Echocardiography / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D013599:Systole; D013997:Time Factors; D014927:Wolff-Parkinson-White Syndrome / Q000503:physiopathology*