{"batchcode": "QW0198", "histograms": [{"batchcodes": ["QW0198"], "histogram": {"Blood test abnormal": 1, "Chest discomfort": 1, "Chest pain": 1, "Dyspnoea": 1, "Echocardiogram normal": 1, "Muscle tightness": 1, "Pain": 1, "Peripheral swelling": 1, "Pyrexia": 1, "X-ray normal": 1}}]}