“…The 93 included literatures contained 27 reviews 19,21,22,30,34,35,40–42,44,47,50,55–57,61,63,67,68,73,77,82,83,85,92,94,98 and 66 methodological studies 4–8,11–18,20,23–29,31–33,36–39,43,45,46,48,49,51–54,58–60,62,64–66,69–72,74–76,78–81,84,86–91,93,95–97 . Among them, 51 were from China, 18 were from America, 6 were from England, and 5 were from France.…”