{"batchcode": "023H20A", "histograms": [{"histogram": {"Cardiac murmur": 1, "Chest pain": 1, "Dyspnoea": 1, "Fatigue": 1, "Heart rate increased": 1, "Palpitations": 1}, "batchcodes": ["023H20A", "029H21H"]}, {"histogram": {"Fatigue": 1}, "batchcodes": ["023H20A"]}]}