Notable negative associations included Eubacterium_hallii_group in both severe neutropenia (d = −1.08, 95% CI: −1.57 to −0.60, q = 0.009) and ALT elevation (d = −0.99, 95% CI: −1.46 to −0.53, q = 0.005), as well as Burkholderia_Caballeronia_Paraburkholderia in ALT elevation (d = −1.19, 95% CI: −1.66 to −0.72, q = 0.012). The gene discussed is GPT; the disease is neutropenia.