{"batchcode": "O45A21A", "histograms": [{"batchcodes": ["045A21A", "O45A21A"], "histogram": {"Axillary pain": 1, "Contusion": 1, "Injection site rash": 1, "Rash erythematous": 1, "Swelling": 1}}, {"batchcodes": ["O45A21A"], "histogram": {"Blood test": 1, "Dizziness": 1, "Erythema": 1, "Headache": 1, "Hypoaesthesia oral": 1, "Induration": 1, "Pain in extremity": 1, "Pruritus": 1, "Swelling": 1, "Throat tightness": 1}}]}