我當赤腳醫生時，皮內，皮下，肌肉，靜脈都打過，這個操作沒什麽，手感都不一樣。皮內推時阻力很大，皮下就沒有阻力了。

來源: 薛成於 2016-09-28 06:25:06 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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