“…Overall, 641 articles were screened, 21 of which were selected according to the above mentioned criteria 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 . The included articles were all case reports (except for one case series [10] ), and contained description of 21 cases.…”