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case_images: (A) Instruments used for Gua Sha therapy in the study. (B) Press-strokes were repeated in one location until appearance of petechiae.
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case_images: PMC11221773_01_IJGM-17-2791-g0001.jpg
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case_images: Wearing disposable medical gloves, the researchers applied a smooth-edged instrument to patients' skin in downward strokes (Figure 1).