cdc有統計數字，在3-17歲人群中大約占10%，即600萬左右。百分比在近20年趨於穩定。

來源: 唐宋韻於 2023-06-21 09:00:11 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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