Response to a comment by H. Bu and Y. Yang on the article "Transcatheter closure of a perimembranous ventricular septal defect with Nit-Occlud Lê VSD Coil: A French multicentre study" by A. Houeijeh et al
1 Paediatric Cardiology Unit, Institut Coeur Poumon, Lille University Hospital, boulevard Professeur Leclercq, 59000 Lille, France. Electronic address: ali.houeijeh@chru-lille.fr.