{"batchcode": "ED1921", "histograms": [{"batchcodes": ["ED1921"], "histogram": {"COVID-19": 1, "Drug ineffective": 1, "Erythema nodosum": 1, "Fibrin D dimer": 1, "Laboratory test": 1, "Morphoea": 1, "Platelet count": 1, "SARS-CoV-2 test": 1, "Ultrasound Doppler": 1, "Venous thrombosis limb": 1}}]}