It was a truly painless, efficient way to collect 100 ul of blood
Just push the green button; it took 2 minutes to get the red light to go on (= full sample)
nature.com/articles/s4155…
to read the full paper rdcu.be/Hlzi
[fulfilling transparency; peer-review standards] await data on other tests
Upgrading "painless" to painless.
twitter.com/i/web/status/9…