在手指，示指末节桡侧，指甲根角侧上方0.1寸(指寸),沿指甲桡侧画一垂线与指甲基底缘水平线交点处。

On the index finger, radial to the distal phalanx, 0.1 F-cun proximal-lateral to the radial corner of the index fingernail, at the intersection of the vertical line of the radial border of the fingernail and the horizontal line of the base of the index fingernail.

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