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180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)。