{"batchcode": "02AA21A", "histograms": [{"histogram": {"Angiogram abnormal": 1, "Blood cholesterol increased": 1, "Cardiac monitoring": 1, "Cardiac stress test": 1, "Dyspnoea": 1, "Electrocardiogram": 1, "Palpitations": 1, "Pyrexia": 1, "Ultrasound scan abnormal": 1}, "batchcodes": ["02AA21A"]}]}