{"batchcode": "025A21X", "histograms": [{"histogram": {"Blood pressure measurement": 2, "Fibromyalgia": 2, "Heart rate": 2, "Body temperature": 1, "Erythema": 1, "Fatigue": 1, "Headache": 1, "Migraine": 1, "Myalgia": 1, "Nausea": 1, "Pyrexia": 1, "Vaccination site erythema": 1, "Vaccination site pain": 1, "Vaccination site swelling": 1}, "batchcodes": ["025A21X"]}]}