1. 渊腋 (GB22):在侧胸部，举臂，当腋中线上，腋下3寸，第4肋间隙中(图1)。

2. 辄筋(GB23):在侧胸部，渊腋前1寸，平乳头，第4肋间隙中(图1)。

1. Yuanye (GB22): on the lateral side of the chest, with the arm raised, it is on the mid-axillary line, 3 cun below the axilla, in the fourth intercostal space (Fig.1).

2. Zhejin (GB23): on the lateral side of the chest, 1 cun anterior to Yuanye(GB22), at the same level as the nipple, in the fourth intercostal space (Fig. 1).

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