Guizhou Province, especially southwest Guizhou, is one of serious iodine deficiency disorders (IDD) areas in China.

贵州是我国碘缺乏病严重地区之一，特别是黔西南地区。

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Guizhou Province, especially southwest Guizhou, is one of serious iodine deficiency disorders (IDD) areas in China.

贵州是我国碘缺乏病严重地区之一，特别是黔西南地区。

youdao