title: A 45-year-old man with progressive shortness of breath.
authors.affiliation: Epidemiology and Preventive Medicine, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA.
authors.forename: Giora
authors.initials: G
authors.lastname: Netzer
authors.forename: Charles J
authors.initials: CJ
authors.lastname: Sailey
mesh_terms: D003937:Diagnosis, Differential; D004417:Dyspnea / Q000175:diagnosis* / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D017565:Sarcoidosis, Pulmonary / Q000150:complications* / Q000175:diagnosis* / Q000503:physiopathology