{"batchcode": "1L3948", "histograms": [{"histogram": {"Atrial fibrillation": 1, "Atrial flutter": 1, "Bradycardia": 1, "Cardiac imaging procedure abnormal": 1, "Cardiac pacemaker insertion": 1, "Cardioversion": 1, "Catheterisation cardiac": 1, "Computerised tomogram thorax": 1, "Dyspnoea": 1, "Echocardiogram": 1, "Echocardiogram abnormal": 1, "Electrocardiogram abnormal": 1, "Fatigue": 1, "Fluid retention": 1, "Heart rate decreased": 1, "Pericardial effusion": 1, "Pericarditis": 1, "Pulmonary oedema": 1, "Ultrasound Doppler": 1}, "batchcodes": ["1L3948", "EL9263"]}]}