title: COMMISSION ON RESPIRATORY DISEASES. The transmission of primary atypical pneumonia to human volunteers; clinical features.
mesh_terms: D064368:Healthy Volunteers; D006801:Humans; D007251:Influenza, Human; D009175:Mycoplasma Infections; D011014:Pneumonia; D018410:Pneumonia, Bacterial; D011019:Pneumonia, Mycoplasma