“…Of included articles, 19 reported incidence or prevalence rates in Europe [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34], seven in North-America [35][36][37][38][39][40][41], three in Asia [42][43][44], and two in Australia [45,46]. Studies varied in size from 10 to 770 patients in catchment areas from 100,312 to 19,230,000 inhabitants.…”