{"batchcode": "ER8131", "histograms": [{"histogram": {"Pain": 2, "Back pain": 1, "Blindness": 1, "Chills": 1, "Cough": 1, "Dry eye": 1, "Fatigue": 1, "Migraine": 1, "Ultrasound scan": 1, "Vaccination site pain": 1, "Vision blurred": 1}, "batchcodes": ["ER8131"]}]}