As someone said before, CRA has a low threshold, and basically anyone with a medical background can do it, but to what extent, it depends on personal opportunities and talents. There are many other advantages and disadvantages on the forum, so there is an age problem here. Even if you are willing to start as an intern yourself, how many bosses will have the patience to give people over 30 a chance to start from scratch? Many people directly entered this industry after graduating from undergraduate courses, and with the good opportunities at that time, many people became managers before the age of 30. Even if you don't mind that the boss is younger than you, he will have scruples. Now that there is so much choice, he can recruit a younger, more dynamic and easier to manage. And most interns are 85-88. It's really hard to do the same thing with younger people, and I really don't mind at all. . . . .

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