Can't remember but I can find out. It had to be strapped on to me very precisely and they had a lot of issues with keeping it steady. Once it was one we could actually see the cells.
likely confocal microscopy
I just read today that in vivo confocal microscopy was used clinically in human patients. Do dermatologists do this, or is someone else operating the device? I've only used them in mice, very neat!
Yes in Vivo confocal microscopy is done by Dermatologists