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Description
While animal studies show low toxicity, long-term safety in humans remains unknown

Drug Development and Industrial Pharmacy
With 90 degrees insertion, needles 4-5 mm enter the subcutaneous tissue with minimal risk of IM injection in virtually all adults

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The only way to know for sure is a blood test

doi: 10.1182/blood-2017-06-740944 3 YongJCaiSZengZ
