This picture is Mahatma Gandhi in the '40s using the exact same setup that we actually use today for diagnosing T.B. in his ashram in Sevagram in India.
这张照片里是四十年代时圣雄甘地 用着和我们现在用的一模一样的设备， 在他的修行处诊断肺结核， 那是在印度的色瓦格拉姆。