{"batchcode": "028H21A", "histograms": [{"histogram": {"Dizziness": 1, "Feeling abnormal": 1, "Herpes zoster": 1, "Palpitations": 1, "Paraesthesia": 1, "Pruritus": 1, "Ventricular extrasystoles": 1}, "batchcodes": ["028H21A", "029L20A", "02SJ20-2A"]}, {"histogram": {"Chills": 2, "Petechiae": 1}, "batchcodes": ["028H21A"]}]}