title: Pulmonary calcifications; roentgenographic observations in relation to histoplasmin and tuberculin reactions.
authors.forename: H B
authors.initials: HB
authors.lastname: ZWERLING
authors.forename: C E
authors.initials: CE
authors.lastname: PALMER
mesh_terms: D002113:Calcification, Physiologic; D006659:Histoplasmin; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008171:Lung Diseases; D013902:Radiography, Thoracic; D014373:Tuberculin
chemical_list: D014373:Tuberculin; D006659:Histoplasmin