TY - RPRT TI - Ionescu-Shiley valve defect. AU - R S Toon AU - R K Grooters AU - H Soltanzadeh PY - 1984 DO - 10.1016/s0003-4975(10)60314-1 UR - https://pubmed.ncbi.nlm.nih.gov/6696554/ ID - 6696554 ER -