FGF23 and hypophosphatemia: The gene panel results were negative for several hypophosphatemia-related genes OCRL, ALPL, CLCN5, CYP27B1, CYP2R1, DMP1, ENPP1, FAH, FGF23, KL, PHEX, SLC34A1, SLC34A3, and VDR genes (Blueprint Genetics, Finland and Center for Genomics and Transcriptomics, Germany).