TY - GEN TI - Maternal-fetal transfer of thyroxine SN - 0028-4793 PY - 1989///1218 KW - Female KW - Humans KW - Hypothyroidism KW - metabolism KW - Maternal-Fetal Exchange KW - Pregnancy KW - Thyroxine KW - pharmacokinetics N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1056/NEJM198911303212216 ER -