“…[20,22,28], 5 prospective cohort studies [12,13,23,32,34], and 1 randomized controlled trial [30]. Five studies were conducted in North America [12,13,16,24,34], 10 in Europe [14,15,17,18,22,23,27,28,32,33], and 8 in Asia [19−21,25,26,29−31]. The countries with the largest representation in this meta-analysis were Italy (n = 6, 26.1%) [17,22,23,27,28,33], the United States (n = 5, 21.7%) [12,13,16,24,34], and South Korea (n = 4, 17.4%) Fig.…”