“…Among previous studies in the pediatric population, CPH, EPH, and not-speci ed-PH were reported in 23, 7, and 5 patients, respectively. PH has been described among children and adolescents in various parts of the world including the United States (USA) (10,23,27,35), Canada (29,39), United Kingdom (UK) (21), Germany (22,25,30,31), France (40), Italy (26, 32, 38), Austria (34), Estonia (36, 37), Brazil (24), Portugal (11), Japan (28), and Korea (33), but the races were not speci ed in most of the studies. Unless one study, the gender of all cases was reported (10).…”