Postoperative echocardiographic study of patients following valvulotomy for critical valvular aortic stenosis / K. Fäller, I. Hartyánszky, K. Lozsádi
  Bibliogr. 10 tétel, Abstr, eng.
  In: Acta Paediatrica Hungarica. - ISSN 0231-441X. - 1991. 31. évf. 1. sz., p. 75-81.