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Amazon.com: U-100 1cc 31 Gauge 5/16 Inch Syringe, Individually Packed 20 PACK : Industrial & Scientific
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Monoject Insulin Safety Syringe 30G x 5/16", 1 mL (100 count) 61511310-Box - MAR-J Medical Supply, Inc.
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Amazon.com: U-100 1cc 31g 5/16" (8mm) Syringes, Individually Wrapped Pack of 20 : Knixxo: Everything Else
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