“…1). 14 out of the selected 16 articles were case series (only one out of them included less than 10 cases) [4,5,[8][9][10][11][12][13][14][15][16][17][18][19], while the remaining two articles were case reports [20,21]. We tested all of the case series by NICE scoring scale, and 5 out of the 14 articles collected a score ≥6 and were considered as good quality studies; on the other hand, 8 papers scored four or five, and only one paper scored three, as shown in Table 2.…”