{"batchcode": "02113214", "histograms": [{"histogram": {"Arrhythmia": 1, "Blood test": 1, "Cardiac monitoring": 1, "Condition aggravated": 1, "Electrocardiogram abnormal": 1, "Fatigue": 1, "Impaired work ability": 1, "Supraventricular extrasystoles": 1}, "batchcodes": ["02113214"]}]}