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Needles become blunt after a single use, making subsequent injections more painful and increasing the risk of skin trauma and infection
Proteins were removed by centrifugation at 12,000 rpm at 4 C for 20 min and the supernatant was transferred to a glass vial and sealed tightly
doi: 10.1056/NEJMoa2004967 60 SridharVSBhattDLOdutayoASzarekMDaviesMJBanksPet al
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