title: Primary atypical pneumonia, etiology unknown; a critical study and presentation of 33 cases.
authors.forename: F H
authors.initials: FH
authors.lastname: WENTWORTH
mesh_terms: D006801:Humans; D007251:Influenza, Human; D017563:Lung Diseases, Interstitial; D011014:Pneumonia; D018410:Pneumonia, Bacterial; D011019:Pneumonia, Mycoplasma
keywords: PNEUMONIA