title: Periapical actinomycosis: a follow-up study of 16 surgically treated cases.
authors.forename: R P
authors.initials: RP
authors.lastname: Happonen
mesh_terms: D000196:Actinomycosis / Q000601:surgery*; D000293:Adolescent; D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010483:Periapical Diseases / Q000601:surgery*