{"batchcode": "EWC198", "histograms": [{"histogram": {"Balance disorder": 1, "Blood test": 1, "Chest pain": 1, "Chills": 1, "Diarrhoea": 1, "Dyspnoea": 1, "Electrocardiogram": 1, "Fatigue": 1, "Muscular weakness": 1, "Pyrexia": 1, "X-ray": 1}, "batchcodes": ["EWC198"]}]}