{"batchcode": "02K20A", "histograms": [{"histogram": {"Arthralgia": 2, "Chills": 2, "Fatigue": 2, "Headache": 2, "Arthropod bite": 1, "Blood magnesium decreased": 1, "Blood potassium decreased": 1, "Cardiac electrophysiologic study": 1, "Catheterisation cardiac normal": 1, "Chest discomfort": 1, "Dizziness": 1, "Echocardiogram normal": 1, "Electrocardiogram abnormal": 1, "Erythema": 1, "Feeling cold": 1, "Hyperhidrosis": 1, "Implantable defibrillator insertion": 1, "Injection site rash": 1, "Intensive care": 1, "Magnetic resonance imaging heart": 1, "Myalgia": 1, "Mydriasis": 1, "Myocardial necrosis marker normal": 1, "Nausea": 1, "Pain": 1, "Pallor": 1, "Pruritus": 1, "Pustule": 1, "Pyrexia": 1, "Rash erythematous": 1, "Rash papular": 1, "Skin test negative": 1, "Ventricular tachycardia": 1, "Vomiting": 1, "White blood cell count abnormal": 1}, "batchcodes": ["02K20A"]}]}