“…The included studies were published between 1928 and 2020 (See Supplement 2 for the characteristics of the included studies) (Alper et al, 1986;Aznar et al, 1969;Bang, 1950;Barqawi et al, 2007;Bateman et al, 1980;Bergin, 1951;Bersi, 1977;Binder et al, 1976;Bohm, 2010;Böttger and Fleck, 1955;Brent et al, 2006;Brown et al, 1949;Buytaert and Meulyzer, 1977;Charawanamuttu et al, 1973;Claus and Dochez, 1966;Coventry, 1934;Dan et al, 1990;Dreyer et al, 2017;Drukman and Rozin, 1951;Effkemann, 1935;Eisen and Goldstein, 1945;Elliott et al, 1965;Faris and McMurrey, 1947;Feiner, 1942;Flew, 1944;Fochem and Ulm, 1954;Frischkorn, 1958;Geary et al, 1969;Gotoh et al, 2010;Grant et al, 1957;Grosskinsky et al, 1994;Grossmann, 1946;Gunsberger, 1958;Heinen and Schussler, 1966;Hemmeler, 1938;Hirst, 1928;Hohlbein, 1965;Ishizuki et al, 1992;Johnson et al, 2004;Kaneshige et al, 2015;Karshmer and Stein, 1951;…”