Super late update: I found at least a pilot study that shows that the technique is promising. There's also some evidence that this is being used in the current

Super late update: I found at least a pilot study that shows that the technique is promising. There's also some evidence that this is being used in the current crisis but I don't know how reliable these sources are: https://twitter.com/alandrummond2/status/1240008793167192066 https://twitter.com/alandrummond2/status/1240008793167192066 https://www.youtube.com/watch?v=uClq978oohY https://www.youtube.com/watch?v=uClq978oohY