
Keywords: هفته بارداری; GW; gestational week; CN; cochlear nucleus; VCN; ventral cochlear nucleus; DCN; dorsal cochlear nucleus; AVCN; anteroventral cochlear nucleus; PVCN; posteroventral cochlear nucleus; PV; parvalbumin; DAB; diamminobenzidine; CRL; crown rump length; BPD; bip