title: Treatment of the refractory case.
authors.affiliation: Temple University, Philadelphia.
authors.forename: E S
authors.initials: ES
authors.lastname: Rosenberg
authors.forename: B A
authors.initials: BA
authors.lastname: Maldonado
authors.forename: M
authors.initials: M
authors.lastname: Margolin
mesh_terms: D002908:Chronic Disease; D006801:Humans; D010510:Periodontal Diseases / Q000175:diagnosis / Q000382:microbiology / Q000628:therapy*