{"batchcode": "EW4811?", "histograms": [{"histogram": {"Blood pressure decreased": 1, "Eczema": 1, "Erythema": 1, "Face oedema": 1, "Oxygen saturation": 1, "Oxygen saturation decreased": 1, "Pruritus": 1, "Vomiting": 1}, "batchcodes": ["EW4811?"]}]}