{"batchcode": "0202B21A", "histograms": [{"histogram": {"Dizziness": 1, "Dyspnoea": 1, "Echocardiogram": 1, "Electrocardiogram": 1, "Exercise electrocardiogram": 1, "Headache": 1, "Heart rate increased": 1, "Muscle fatigue": 1, "Nausea": 1, "Tilt table test": 1}, "batchcodes": ["0202B21A"]}]}