EntityQ3475894· pop 9· linked from 329 articlesventilation/perfusion scanSign in to saveConnectionslungEntitycomputed tomographyEntityrespiratory tractEntitychest radiographEntityDoppler ultrasonographyEntityupper gastrointestinal seriesEntityInternational Standard Book NumberEntitypneumoniaEntitystrokeEntityX-rayEntitybreathingEntitysurgeryEntitylaserEntityrespiratory systemEntitydigital object identifierEntitychronic obstructive pulmonary diseaseEntitycell biologyEntitygamma rayEntitylarynxEntitytracheaEntityCategoriesRespiratory system imagingScintigraphy