“…The scores for included studies ranged from 2 to 6. Only one study got 2 points (4.17%), 74 4 studies got 3 points (20.83%), 58,60,68,69,81 14 studies got 4 points (58.33%), 59,61,66,67,70,72,73,75,77–80,82,84 3 studies got 5 points (12.5%), 62,76,83 and 1 study got 6 points (4.17%). 71 Only one study divided experimental animals into groups using a random number table, 71 while one study was assigned according to the results of body weight; 73 the information concerning this procedure was not mentioned in the remaining research.…”