SAFETY OF INJECTIONS- A GLOSSARY 安全注射一翁語 ◆動筆! ◆ njection The administration of a substance into the skin, subcutaneous tissue. muscle tissue or veInsSAFETY OF INJECTIONS -- A GLOSSARY 安全注射 ── 術語 動筆！ Injection ◼ The administration of a substance into the skin, subcutaneous tissue, muscle tissue, or veins