{"batchcode": "J8J204A21A", "histograms": [{"batchcodes": ["J8J204A21A"], "histogram": {"Blood test": 1, "Chills": 1, "Dizziness": 1, "Ear discomfort": 1, "Flushing": 1, "Headache": 1, "Magnetic resonance imaging head": 1, "Myalgia": 1, "Nausea": 1, "Pyrexia": 1, "Tinnitus": 1, "Vertigo": 1}}]}