Xu Guitian, male, graduated from Clinical Medicine major of Guiyang Medical College in July 1994, and was assigned to work in pediatrics of Sinan County People's Hospital in August of the same year. Since April 2001, he has been engaged in clinical work in pediatrics。In 2006, he obtained the qualification of attending physician and was promoted to attending physician of pediatrics in 2008。From August 2008 to August 2009, he studied in the Department of Pediatrics of Southwest Hospital. In 2015, he was promoted to the deputy chief physician of the Department of Pediatrics. In April 2016, he was selected as the standing member of the Department of Pediatrics of Tongren Medical Association。