Leukopenia (× 109/L): 2 months-2 years: <5, >2 years: <4; Lymphopenia (× 109/L): 2-11 months: <4.0, 1-11 years: <1.5, 12+ years: <1; Neutropenia (× 109/L): All ages: <1.5; Neutrophilia (× 109/L): All ages: >8.5; Thrombocytopenia (× 109/L): All ages: <150; Elevated AST(U/L): All ages: >50; Elevated ALT (U/L): All ages: >50; Elevated CRE (μmol/L): All ages: >120; Elevated CK (U/L): All ages: >200; Elevated CRP (nmol/L): All ages: >10; Elevated LDH (U/L): <7 years: >400, 7-15 years: >300, 16+ years: >250. The gene discussed is GPT; the disease is Decreased total leukocyte count.