对比大理地区健康汉族人与白族人血清总三碘甲状腺原氨酸（TT3）、总甲状腺素（TT4）含量，建立本地区健康人TT3、TT4正常参考值。
Objective:To contrast the levels of serum TT3 and TT4 between healthy Han and Bai people and to establish the local normal value of TT3 and TT4 in Dali.
对比大理地区健康汉族人与白族人血清总三碘甲状腺原氨酸（TT3）、总甲状腺素（TT4）含量，建立本地区健康人TT3、TT4正常参考值。
Objective:To contrast the levels of serum TT3 and TT4 between healthy Han and Bai people and to establish the local normal value of TT3 and TT4 in Dali.
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