{"batchcode": "0212B21A", "histograms": [{"histogram": {"Blood magnesium": 1, "Cardiac telemetry": 1, "Cardiomegaly": 1, "Chest X-ray": 1, "Computerised tomogram thorax": 1, "Dizziness exertional": 1, "Dyspnoea": 1, "Echocardiogram": 1, "Electrocardiogram": 1, "Electrocardiogram ambulatory": 1, "Fibrin D dimer": 1, "Full blood count": 1, "Lipids": 1, "Metabolic function test": 1, "Ventricular extrasystoles": 1}, "batchcodes": ["0212B21A", "022B21A"]}]}