“…The studies were published in a period between 1929 and 2020. Up to the 1980s, there were only thirteen publications [ 15 , 27 , 51 , 54 , 56 , 57 , 61 , 63 – 68 ], and the number increased to 21 in the 1980s [ 8 , 23 , 28 , 34 , 58 , 59 , 69 – 83 ], 46 in the 1990s [ 3 , 4 , 6 , 12 , 22 , 24 , 33 , 39 , 43 , 44 , 46 , 49 , 52 , 53 , 84 – 115 ], decreased to 30 in the 2000s [ 7 , 11 , 16 , 17 , 21 , 25 , 26 , 36 , 41 , 47 , 50 , 60 , 62 , 116 – 132 ], and reached 44 in the period between 2010 and 2020 [ 1 , 2 , 5 , 13 , 14 , 18 – 20 , 29 – 32 , 35 , 37 , 38 , 40 , 42 , 45 , 48 , 55 , 133 – 156 ].…”