title: Etiology of pneumonia in nonrecruit military personnel.
mesh_terms: D000257:Adenoviridae Infections / Q000150:complications; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001419:Bacteria / Q000302:isolation & purification; D003168:Complement Fixation Tests; D004196:Disease Outbreaks; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007251:Influenza, Human / Q000150:complications; D007710:Klebsiella Infections / Q000150:complications; D008297:Male; D008875:Middle Aged; D008887:Military Medicine; D009174:Mycoplasma / Q000302:isolation & purification; D009175:Mycoplasma Infections / Q000150:complications; D010614:Pharynx / Q000382:microbiology; D011008:Pneumococcal Infections / Q000150:complications; D011014:Pneumonia / Q000453:epidemiology / Q000209:etiology* / Q000382:microbiology; D011023:Pneumonia, Staphylococcal / Q000382:microbiology; D011024:Pneumonia, Viral / Q000209:etiology; D011446:Prospective Studies; D013183:Sputum / Q000382:microbiology; D014780:Viruses / Q000302:isolation & purification