Institution: | 1. Division of Pediatric Cardiology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, 350-8550, Japan 2. Division of Neonatology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan 3. Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
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