The prestigious IAEA (International Atomic Energy Agency) published an early report on Chernobyl which was based on information from Russian sources and stated that there was no significant health effects.

"Results": [
    {
        "TypeName": "ORG",
        "Text": "IAEA",
        "Start": 16,
        "End": 20
    },
    {
        "TypeName": "ORG",
        "Text": "International Atomic Energy Agency",
        "Start": 22,
        "End": 56
    },
    {
        "TypeName": "LOC",
        "Text": "Chernobyl",
        "Start": 87,
        "End": 96
    }
]