目的了解单透析中心的维持性血液透析患者慢性肾脏病-矿物质和骨异常（chronic kidney disease-mineral and bone disorder,CKD-MBD）......

目的调查单透析中心维持性透析患者慢性肾脏病-矿物质和骨异常(chronic kidney disease-mineral and bone disorder,CKD-MBD)的患......