{"batchcode": "019J21A", "histograms": [{"histogram": {"Chest pain": 3, "Fatigue": 3, "Pericarditis": 3, "Chills": 2, "Abdominal pain upper": 1, "Abnormal uterine bleeding": 1, "Acute myocardial infarction": 1, "Arthralgia": 1, "Asthenia": 1, "Atrial fibrillation": 1, "Blood iron": 1, "Cardiac function test": 1, "Chest discomfort": 1, "Discomfort": 1, "Dyspepsia": 1, "Electrocardiogram": 1, "Eye pain": 1, "Eye swelling": 1, "Fibrin D dimer": 1, "Fibrin D dimer increased": 1, "Gait disturbance": 1, "Haemoglobin": 1, "Headache": 1, "Hypoaesthesia": 1, "Interchange of vaccine products": 1, "Myocardial ischaemia": 1, "Myocardial necrosis marker": 1, "Myocarditis": 1, "Myopericarditis": 1, "Neck pain": 1, "Ocular discomfort": 1, "Pain in extremity": 1, "Palpitations": 1, "Pericardial effusion": 1, "Periorbital swelling": 1, "Pyrexia": 1, "SARS-CoV-2 test": 1, "Suicidal ideation": 1, "Tachycardia": 1, "Vaccination site pain": 1}, "batchcodes": ["019J21A"]}]}