[Bacteriological studies on oral flora and hygiene].
D001419:Bacteria; D001432:Bacteriology; D041981:Gastrointestinal Tract; D006801:Humans; D006920:Hygiene; D009055:Mouth / Q000382:microbiology*
BACTERIA; HYGIENE; MOUTH/bacteriology
Bakteriologische Studien über die Mundflora und Mundhygiene.