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Of the 410 included patients, 304 completed ≥12 months of follow-up (response rate, 74.1%), with a median follow-up time of 55 months (range, 12–188 months). Of these patients, 252 (82.9%) received face-to-face follow-up with physical and radiological examinations at the 7 participating hospitals; 52 (17.1%) were also contacted via telephone, with their physical and radiological examinations performed at local hospitals.
