CYBB and chronic granulomatous disease: http://www.hgmd.cf.ac.uk/ac/index.php).[4] In the Chinese population, one previous study reported 38 children with chronic granulomatous disease in Chongqing Children's Hospital, and 19 novel mutations of the CYBB gene were discovered,[5] while Beijing Children's Hospital collected 12 boys with X-CGD, and 8 novel mutations were found.[6] However, there are fewer papers on CGD mutations in China than in other countries.