昔の医療系ビデオ
https://www.youtube.com/watch?v=2poF0_IHtBU
https://www.youtube.com/watch?v=-2Z-_xOqxoU
https://www.youtube.com/watch?v=OybwImK9B3Q
https://www.youtube.com/watch?v=5KVvIBQ0c-Y
昔のビデオって雰囲気が怖い