Ch'en gradually expanded the group, and recruited non-affiliated, paid workers. The center soon became a well administered and regulated organization which served to introduce paid hospital aides to patients, collecting a small percentage of their earnings.
看護不是醫院的人員，院方很難管理，難免造成素質良莠不齊的情形，偶會發生看護對病人態度惡劣、違反院方規定等情事。後來醫院為了維護病患權益及便於管理，以免妨礙醫療程序與院內秩序，就自行招訓看護，或與看護中心訂約合作。