{"batchcode": "EW0813", "histograms": [{"batchcodes": ["EW0198", "EW0813"], "histogram": {"Cardiac imaging procedure abnormal": 1, "Chest pain": 1, "Echocardiogram": 1, "Myocarditis": 1}}, {"batchcodes": ["EW0813"], "histogram": {"Abdominal discomfort": 1, "Vomiting": 1}}]}