Betulinic Acid Ameliorates Rhabdomyolysis-Induced Acute Kidney Injury by Inhibiting the Phosphorylation of P38 Mitogen-Activated Protein Kinases in Rats#br# #br# ACTA NEUROPHARMACOLOGICA . 2021, (1): 1 -64 . DOI: 10.3969/j.issn.2095-1396.2021.01.001