“…Most of the articles studied were published in the last 3 years ( n = 9) [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ]. Six documents were published in the United States [ 18 , 25 , 26 , 27 , 28 , 29 ], and two were published in Turkey [ 17 , 21 ].…”