Earlier quoted context omitted.
How is that different from any other language? For instance, Chinese/Eastern medical jargon is objectively more readable than Western terms (unless you are fluent in Greek and Latin), but that doesn't mean you'll be able to understand them without some prior exposure. French is also spoken outside of France.
I apologise; I routinely discount anything that is in a language that I can't read, and isn't available in translation, which means an awful lot of stuff from the far-east. I assumed doctors everywhere had built an informal consensus to use English, with terminology derived from classical greek; rather as pilots and air-traffic controllers all use English.
At least that used to be the case. In Germany medical students are still required to learn (at least some) Latin.