Fetal age and morphological features.
D001940:Breast / Q000033:anatomy & histology; D004431:Ear, External / Q000033:anatomy & histology; D005260:Female; D005528:Foot / Q000033:anatomy & histology; D005835:Genitalia / Q000033:anatomy & histology; D005865:Gestational Age; D006197:Hair / Q000033:anatomy & histology; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009262:Nails / Q000033:anatomy & histology; D012867:Skin / Q000033:anatomy & histology; D012886:Skull / Q000033:anatomy & histology