“…The number of patients in each study ranged from 5 to 181 ( Table I ). There was 1 RCT 32 and 26 case series 1 , 2 , 3 , 6 , 7 , 8 , 9 , 10 , 14 , 18 , 20 , 21 , 22 , 24 , 27 , 28 , 30 , 36 , 38 , 42 , 44 , 45 , 46 , 47 , 50 , 51 ( Table II ). Eight case series 8 , 9 , 20 , 21 , 22 , 30 , 45 , 51 were not clearly classified but were viewed as case series for the purpose of this review.…”