title: Sputum or spit?
mesh_terms: D005122:Exudates and Transudates / Q000382:microbiology; D006801:Humans; D012141:Respiratory Tract Infections / Q000175:diagnosis*; D013183:Sputum / Q000382:microbiology*; D013396:Suction; D014132:Trachea / Q000378:metabolism*