TY - JOUR AU - Kohl, T; Sharland, G; Allan, L D TI - World experience of percutaneous ultrasound-guided balloon valvuloplasty in human fetuses with severe aortic valve obstruction JO - Am J Cardiol VL - 85 PY - 2000 DO - 10.1016/S0002-9149(00)00733-5 SP - 1230 EP - 1233 N1 - et al. ER -