Template:Ref-Witschi1948
From Embryology
Witschi E. Migration of the germ cells of human embryos from the yolk sac to the primitive gonadal folds. (1948) Carnegie Instn. Wash. Publ. 575, Contrib. Embryol., 32: 67-80.
Witschi E. Migration of the germ cells of human embryos from the yolk sac to the primitive gonadal folds. (1948) Carnegie Instn. Wash. Publ. 575, Contrib. Embryol., 32: 67-80.