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Fig. 5 | BMC Complementary and Alternative Medicine

Fig. 5

From: Biological safety of Electroacupuncture with STS316 needles

Fig. 5

Cell necrosis and corrosion byproducts in tissues. a: Non-coated 0.25-mm STS316 needle, b: Coated 0.3-mm STS316 needle, c: Coated 0.2-mm STS316 needle, C-1: Coated 0.2-mm STS316 needle. Cell necrosis was suspected (circled) around the insertion site. Note, however, that actual cell necrosis was detected with non-coated 0.25-mm STS316 needles and coated 0.3-mm STS316 needles, but needle corrosion byproducts were only detected with coated 0.2-mm STS316 needles (arrows)

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