Variation of ganglia of the pelvic segment of the sympathetic trunk in human fetuses.
D003050:Coccyx; D005260:Female; D005333:Fetus / Q000033:anatomy & histology*; D005728:Ganglia, Sympathetic / Q000033:anatomy & histology*; D006801:Humans; D008297:Male; D011247:Pregnancy; D012447:Sacrum; D012737:Sex Factors