SEARCH Articles Figures Tables 9-£>-Hypoxanthines Guanin Guanine Guanine phosphoribosyltransferase deficiency Hypoxanthin Hypoxanthine Hypoxanthine-guanine Hypoxanthine-guanine phosphoribosyltransferase Hypoxanthine-guanine phosphoribosyltransferase deficiency syndrome Phosphoribosyltransferase