Hormonal levels in the human fetus between 14 and 22 weeks gestation.

[1]  J. Winter.  Hypothalamic--pituitary function in the fetus and infant. , 1982, Clinics in endocrinology and metabolism.

[2]  D. Fisher,et al.  Thyroid development and disorders of thyroid function in the newborn. , 1981, The New England journal of medicine.