{"batchcode": "#ER8731", "histograms": [{"histogram": {"Adrenal mass": 1, "Dizziness": 1, "Fatigue": 1, "Hypoaesthesia": 1, "Lymphadenopathy": 1, "Magnetic resonance imaging abnormal": 1, "Nodule": 1, "Pain": 1, "Pharyngeal hypoaesthesia": 1, "Somnolence": 1, "Throat tightness": 1}, "batchcodes": ["#EP7534", "#ER8731"]}, {"histogram": {"Cerebrospinal fluid leakage": 1, "Computerised tomogram head": 1, "Computerised tomogram spine": 1, "Epidural blood patch": 1, "Headache": 1, "Injection site discomfort": 1, "Injection site pain": 1, "Injection site reaction": 1, "Injection site warmth": 1, "Magnetic resonance imaging head": 1, "Magnetic resonance imaging spinal": 1, "Subdural haematoma": 1, "Urticaria": 1}, "batchcodes": ["#ER8731"]}]}