Hiatus canalis sacralis in American whites and Negroes.
TROTTER
M
M
LANIER
P F
PF
D044383:Black People; D006652:Histological Techniques; D006801:Humans; D012447:Sacrum / Q000033:anatomy & histology*; D013115:Spinal Canal; D014481:United States; D001741:Black or African American