GPT and xerostomia: Her symptoms of xerostomia, xerophthalmia, malaise, and fatigue had begun eight months prior, leading to blood tests revealing leukopenia (2.67 x 10^9/L), neutropenia (1.00 x 10^9/L), and mildly elevated liver enzymes: aspartate aminotransferase (AST; 83 U/L), alanine aminotransferase (ALT; 125 U/L), and γ-glutamyltransferase (γGT; 46 U/L).