{"batchcode": "308911B", "histograms": [{"batchcodes": ["308911B"], "histogram": {"Arrhythmia": 1, "Blood pressure measurement": 1, "Congestive cardiomyopathy": 1, "Cough": 1, "Diabetes mellitus": 1, "Dyspnoea": 1, "Ejection fraction": 1, "Facial paralysis": 1, "Heart valve incompetence": 1, "Hypertension": 1, "Visual field defect": 1}}]}