Fangshan District Liangxiang Hospital Beijing 102401 China;
Fangshan District Liangxiang Hospital Beijing 102401 China;
Fangshan District Liangxiang Hospital Beijing 102401 China;
Fangshan District Liangxiang Hospital Beijing 102401 China;
Fangshan District Liangxiang Hospital Beijing 102401 China;
Fangshan District Liangxiang Hospital Beijing 102401 China;
Continuous self-management education; PICC catheterization; Tumor; Self-care ability; Health behavior;