[Research study on the therapeutic status of pediatric surgical disease in Sapporo].
D000367:Age Factors; D001064:Appendicitis / Q000453:epidemiology / Q000601:surgery; D006552:Hernia, Inguinal / Q000453:epidemiology / Q000601:surgery; D006801:Humans; D007564:Japan; D013514:Surgical Procedures, Operative / Q000706:statistics & numerical data*