{"batchcode": "FF2590", "histograms": [{"histogram": {"Atrial fibrillation": 1, "Bundle branch block": 1, "Cardiac failure": 1, "Cardiac failure congestive": 1, "Cardiac pacemaker insertion": 1, "Catheterisation cardiac normal": 1, "Electrocardiogram": 1, "Implantable defibrillator insertion": 1, "Magnetic resonance imaging heart": 1, "Sinus tachycardia": 1, "Ultrasound scan": 1, "Ventricular arrhythmia": 1, "Ventricular dysfunction": 1}, "batchcodes": ["FF2590"]}]}