{"batchcode": "01J20A", "histograms": [{"histogram": {"Balance disorder": 1, "Dizziness": 1, "Pain": 1, "Pain in extremity": 1, "Pyrexia": 1}, "batchcodes": ["01J20A", "042L20A"]}, {"histogram": {"Blood test": 1, "Cardiac flutter": 1, "Cardiac monitoring": 1, "Dizziness": 1, "Ear discomfort": 1, "Echocardiogram": 1, "Economic problem": 1, "Electrocardiogram ambulatory": 1, "Electrocardiogram normal": 1, "Electroencephalogram": 1, "Fatigue": 1, "Gastrointestinal disorder": 1, "Hypoaesthesia": 1, "Impaired work ability": 1, "Inappropriate schedule of product administration": 1, "Influenza like illness": 1, "Magnetic resonance imaging": 1, "Malaise": 1, "Migraine": 1, "Nasopharyngitis": 1, "Nausea": 1, "Postural orthostatic tachycardia syndrome": 1, "Syncope": 1, "Tilt table test": 1, "Ultrasound scan": 1, "Ventricular extrasystoles": 1, "Visual impairment": 1}, "batchcodes": ["01J20A", "043L20A"]}, {"histogram": {"Headache": 3, "Chills": 2, "Nausea": 2, "Pain": 2, "Pyrexia": 2, "Abdominal distension": 1, "Abdominal pain": 1, "Abdominal pain lower": 1, "Abdominal pain upper": 1, "Antinuclear antibody increased": 1, "Biopsy": 1, "Chest discomfort": 1, "Computerised tomogram abdomen abnormal": 1, "Discomfort": 1, "Diverticulitis": 1, "Dizziness": 1, "Dysphagia": 1, "Dyspnoea": 1, "Electrocardiogram": 1, "Exposure during pregnancy": 1, "Fatigue": 1, "Influenza like illness": 1, "Magnetic resonance imaging abdominal abnormal": 1, "Muscle fatigue": 1, "Myalgia": 1, "Neoplasm malignant": 1, "Palpitations": 1, "Pregnancy": 1, "Rash": 1, "Sensation of foreign body": 1, "Vaccination site erythema": 1, "Vaccination site infection": 1, "Vaccination site pain": 1, "Vaccination site pruritus": 1, "Vaccination site swelling": 1, "Vaccination site warmth": 1}, "batchcodes": ["01J20A"]}]}