Methods The urinary iodine of prepartal women and neonatal umbilical cord serum thyroxine (T4) and TSH were determined.

• 方法用砷铈接触法测定67名待产孕妇尿碘，用放射免疫分析法测定其孕妇所产新生儿脐带血甲状腺素（T4）、促甲状腺激素（TSH）。