[For Hannelore Bernhardt's 75th birthday].
Seebacher
Dein Claus
DC
D035843:Biomedical Research / Q000639:trends*; D003141:Communicable Diseases / Q000382:microbiology*; D017753:Ecosystem; D041981:Gastrointestinal Tract / Q000382:microbiology*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D008828:Microbiological Techniques / Q000379:methods; D009055:Mouth / Q000382:microbiology*; D013183:Sputum / Q000382:microbiology*