Aplasia cutis congenita (ACC) is a rare developmental malformation characterized by the absence of skin, and often extends to bone or dura in a localized or widespread area at birth.是什么意思_Aplasia cutis congenita (ACC) is a rare developmental malformation characterized by the absence of skin, and often extends to bone or dura in a localized or widespread area at birth.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句