Effect of acupoint injection by astragalus injection on local SIgA and pathomorphology changes in rats with chronic pelvic inflammatory disease Study of effective components and molecular mechanism for Guizhi Fuling formula treatment of dysmenorrhea, pelvic inflammatory disease and uterine fibroids Molecular mechanism of Guizhi Fuling Capsule for treatment of dysmenorrhea, pelvic inflammatory disease, and hysteromyoma via network pharmacology