PTH: parathyroid hormone, ALP: alkaline phosphatase, eGFR: estimated glomerular filtration rate, MHD: maintenance hemodialysis, Ca x P: calcium-phosphate product, eGFR: estimated glomerular filtration rate, CKD-MBD: Chronic Kidney Disease - Mineral Bone Disorder. Here, PTH is linked to Marchiafava-Bignami disease.