C414 It Was Awkward
It could be considered as a modified version of medical examination.
People were not willing to go to the hospital for a checkup.
Firstly, it was troublesome, and secondly, it was expensive. Using this device, one did not need to go to the hospital to check up on many symptoms. Moreover, there was no need to queue up, and there was also no need to wait for a queue.
In short
