Regulations for Cancer Care Quality Assurance Measures Article 7

Medical institutions of cancer control shall regularly follow up their cancer patients whose cancer information is recorded in the database. The follow-up rate of at least 70% of cancer survival cases shall be maintained.Cases that cannot be followed up within 15 months are defined as missing cases, whose proportion of total cases shall be less then 30% and detailed in written reports.
中文原文 癌症診療品質保證措施準則第7條
癌症防治醫療機構應定期追蹤其癌症資料庫所建置之癌症個案,且對存活癌症個案之追蹤率應達百分之七十以上。
前項追蹤間隔超過十五個月之個案定義為失聯個案,其比例應少於百分之三十,並應作成書面紀錄。

English translation for reference only; the Chinese text prevails. Not legal advice.