{"batchcode": "FM2954", "histograms": [{"histogram": {"Blood test": 1, "Body temperature": 1, "Imaging procedure": 1, "Neck mass": 1, "Nodule": 1, "Polymerase chain reaction": 1, "Pyrexia": 1, "Ultrasound scan": 1, "Vaccination site nodule": 1, "Vaccination site pain": 1, "Varicose vein ruptured": 1}, "batchcodes": ["FM2954"]}]}