{"batchcode": "210001", "histograms": [{"histogram": {"Dizziness": 1, "Electroencephalogram": 1, "Epilepsy": 1, "Immunisation reaction": 1, "Magnetic resonance imaging head": 1, "Presyncope": 1, "Syncope": 1, "Vertigo": 1}, "batchcodes": ["210001", "214024", "ABX3507"]}]}