{"batchcode": "0RA21A", "histograms": [{"histogram": {"Angina pectoris": 1, "Arrhythmia": 1, "Blood test": 1, "Cardiac monitoring": 1, "Chest pain": 1, "Dizziness": 1, "Dyspnoea": 1, "Electrocardiogram": 1, "Electroencephalogram": 1, "Headache": 1, "Laboratory test": 1, "Magnetic resonance imaging head": 1, "Palpitations": 1, "Scan myocardial perfusion": 1}, "batchcodes": ["014F21A", "018B21A", "0RA21A"]}]}