title: [Incidence of appendectomy in Japan].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001062:Appendectomy; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007564:Japan; D008875:Middle Aged; D012737:Sex Factors; D013223:Statistics as Topic