I personally believe that this reason is the most important, some other conditions can only be said to be embellished.
This method is now also used by countless medical device manufacturers to apply, but the effect is far from it, one is not enough time to cultivate, and the other is not enough manpower. But this method is undoubtedly effective for the current situation of China's medical care. That's why there's a famous saying in the industry that the development of medical care in China is driven by the constant education of medical device manufacturers.
The person who introduced this approach was a genius in grasping the lifeblood of Chinese healthcare.
I had a sneaking suspicion that its use of indwelling needles would become a mandatory course in nursing school.