
Keywords: استرون; A; androsterone; amu; atomic units; CIR; carbon isotopic ratio; C.V.%; coefficient of variance; DUB; dysfunctional uterine bleeding; E1; estrone; E2; 17β-estradiol; E3; estriol; Etio; etiocholanolone; eV; electron volt; GC-C-IRMS; gas chromatography