{"batchcode": "PFIZER EW0158", "histograms": [{"batchcodes": ["PFIZER ER2613", "PFIZER EW0158"], "histogram": {"Arthralgia": 1, "Arthritis": 1, "Pain in extremity": 1}}, {"batchcodes": ["PFIZER EW0158"], "histogram": {"Agitation": 1, "Arthralgia": 1, "Back pain": 1, "Electric shock sensation": 1, "Emotional disorder": 1, "Fatigue": 1, "Influenza like illness": 1, "Pain": 1, "Pain in extremity": 1}}]}