Refeeding SyndromeHypophosphatemiaFeeding MethodsHypophosphatemia, FamilialParenteral Nutrition, TotalAnorexia NervosaFamilial Hypophosphatemic RicketsPHEX Phosphate Regulating Neutral EndopeptidaseSyndromeOsteomalaciaPhosphatesGenetic Diseases, X-LinkedSodium-Phosphate Cotransporter Proteins, Type IIc