“…Several review papers have been published within the last 5 years regarding chitosan materials [ 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 ]. According to the Web of Science ® Data Base, about 220 papers have been published in which the word «chitosan» and «review» appear in the title of the article.…”