Data on Reoperation Reported by Researchers at National Health Insurance Service Ilsan Hospital (Risk factors for unplanned reoperation after corrective surgery for adult spinal deformity: machine learning-based game theoretic approach): Surgery - Reoperation - Insurance News insurancenewsnet.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from insurancenewsnet.com Daily Mail and Mail on Sunday newspapers.