{"batchcode": "25B21A", "histograms": [{"batchcodes": ["25B21A"], "histogram": {"Angiogram": 1, "Chest pain": 1, "Deep vein thrombosis": 1, "Dyspnoea exertional": 1, "Pleuritic pain": 1, "Pulmonary infarction": 1, "Ultrasound Doppler": 1}}]}