title: Helper and suppressor T cells in periodontal disease.
mesh_terms: D000328:Adult; D018407:Bacterial Physiological Phenomena; D006801:Humans; D007958:Leukocyte Count; D008875:Middle Aged; D010510:Periodontal Diseases / Q000097:blood* / Q000382:microbiology; D006377:T-Lymphocytes, Helper-Inducer / Q000473:pathology*; D050378:T-Lymphocytes, Regulatory / Q000473:pathology*