Contributions David G. Nykanen, MD, FSCAIAmplatzer Piccolo Occluder Clinical Trial for Percutaneous Closure of the Patent Ductus Arteriosus in Patients ≥700 Grams David G. Nykanen, MD, FSCAISCAI/CCAS/SPA Expert Consensus Statement for Anesthesia and Sedation Practice: Recommendations for Patients Undergoing Diagnostic and Therapeutic Procedures in the Pediatric and Congenital Cardiac Catheterization Laboratory David G. Nykanen, MD, FSCAICRISP: Catheterization RISk Score for Pediatrics: A Report from the Congenital Cardiac Interventional Study Consortium (CCISC) David G. Nykanen, MD, FSCAIStandardizing Radiation Dose Reporting in the Pediatric Cardiac Catheterization Laboratory—A Multicenter Study by the CCISC (Congenital Cardiovascular Interventional Study Consortium)