Incidence of pneumococci in the oral cavity of adults.
D000328:Adult; D005881:Gingiva / Q000382:microbiology; D006801:Humans; D009055:Mouth / Q000382:microbiology*; D010510:Periodontal Diseases / Q000382:microbiology; D013296:Streptococcus pneumoniae / Q000302:isolation & purification*