9Munro MG,Critchley HO,Broder MS,et al.FIGO classification system(PALM-COEIN)for causes of abnormal uterine bleeding in nongravid women of reproductive age[J].Int J Gynaecol Obstet,2011,113:3-13.
10Africander DJ,Storbeck KH,Hapgood JP.A comparative study of the androgenic properties of progesterone and the progestins,medroxyprogesterone acetate(MPA)and norethisterone acetate(NET-A)[J].J Steroid Biochem Mol Biol,2014,143:404-415.