A (syringe needle) may undergo a retraction.Logical formLearned from2 sentences. A (friction ring mechanism) may permit a retraction of a (syringe needle).Logical formLearned from2 sentences. A syringe can be infectious.Logical formLearned from2 sentences. A likelihood of encountering a syringe may decrease.Logical formLearned from2 sentences. A percentage of syringes may be varied with a volume of blood.Logical formLearned from2 sentences. Syringes may be maintained at (room temperature).Logical formLearned from2 sentences. Syringes may be used by injectors of illicit drugs.Logical formLearned from2 sentences. (Neighborhood differences) can be in access to syringes.Logical formLearned from2 sentences. Syringes may undergo sealings.Logical formLearned from2 sentences. Factors may be associated with obtaining syringes.Logical formLearned from2 sentences. Participation can be in (syringe exchange programs).Logical formLearned from2 sentences. A (syringe exchange program) may undergo a development.Logical formLearned from2 sentences. Distribution of syringes may be allowed.Logical formLearned from2 sentences. An action may prevent a distribution of syringes.Logical formLearned from2 sentences. A syringe may send a drug.Logical formLearned from2 sentences.