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Acupoints: (a) BL23 (Shen shu) point is located under the spinous process of the second lumbar vertebra, 1.5 inches beside the posterior midline. (b) ST36 (Zusanli) point is 3 inches under the eye of the outer knee and about 1 inch from the anterior edge of the tibia, and (Ashi) points are located where swelling and paining occur.
