{"batchcode": "PFIZER EN5318", "histograms": [{"batchcodes": ["PFIZER EC3302", "PFIZER EN5318"], "histogram": {"Arthralgia": 1, "Blepharospasm": 1, "Blood test abnormal": 1, "Borrelia test negative": 1, "Depression": 1, "Electromyogram": 1, "Fatigue": 1, "Hypoaesthesia": 1, "Loss of personal independence in daily activities": 1, "Neuropathy peripheral": 1, "Rheumatoid arthritis": 1, "White blood cell count decreased": 1, "X-ray": 1}}, {"batchcodes": ["PFIZER EN5318", "PFIZERNU 6201"], "histogram": {"Pruritus": 1, "Thirst": 1}}, {"batchcodes": ["PFIZER EN5318"], "histogram": {"Pain in extremity": 3, "Asthenia": 2, "Chills": 2, "Pain": 2, "Pyrexia": 2, "Abdominal pain upper": 1, "Chest pain": 1, "Dysphagia": 1, "Fatigue": 1, "Headache": 1, "Hypoaesthesia": 1, "Injection site pain": 1, "Mobility decreased": 1, "Nausea": 1, "Sleep deficit": 1, "Tonsillitis": 1, "Tremor": 1}}]}