Kirk C R, Wilkinson J L, Qureshi S A
Department of Paediatric Cardiology, Royal Liverpool Children's Hospital, U.K.
Eur Heart J. 1988 Sep;9(9):1027-9. doi: 10.1093/oxfordjournals.eurheartj.a062594.
Severe pulmonary valve stenosis in the newborn period usually requires either surgical relief or balloon valvoplasty. We describe a neonate in whom the stenosis spontaneously regressed over nine years.