Qingfei Tongluo Jiedu Formula Regulates M2 Macrophage Polarization via the Butyric Acid-GPR109A-MAPK Pathway for the Treatment of Mycoplasma pneumoniae Pneumonia. - Liu, Zhilin; Fan, Qiuyue; Sun, Ruohan; Jiang, Yonghong (Pharmaceuticals (14248247), 2026)