[Chronic pneumonias of unusual etiology].
D003251:Constriction, Pathologic; D004940:Esophageal Stenosis; D004947:Esophagus; D011014:Pneumonia / Q000209:etiology*
ESOPHAGUS/stenosis; PNEUMONIA/etiology and pathogenesis
K voprosu o khronicheskikh pnevmoniiakh redkoi etiologii.