{"batchcode": "EW064", "histograms": [{"histogram": {"Dizziness": 1, "Fatigue": 1, "Hypertension": 1, "Immediate post-injection reaction": 1, "Nephrolithiasis": 1, "Pain": 1}, "batchcodes": ["EW0167", "EW064"]}, {"histogram": {"Flushing": 1, "Underdose": 1, "Vital signs measurement": 1}, "batchcodes": ["EW064"]}]}