title: Adverse effects of frequent intramuscular injections.
mesh_terms: D004358:Drug Therapy / Q000451:nursing*; D064420:Drug-Related Side Effects and Adverse Reactions; D004438:Ecchymosis / Q000209:etiology; D004890:Erythema / Q000209:etiology; D006801:Humans; D007273:Injections, Intramuscular / Q000009:adverse effects*