passages.id: 1033
passages.type: sentence
passages.text: In COPD patients , reversibility is currently evaluated from the changes of forced expiratory volume at 1s ( ΔFEV1 ) and forced vital capacity ( ΔFVC ) .
entities.id: 1034
entities.type: outcome
entities.text: forced expiratory volume at 1s ( ΔFEV1 )
entities.id: 1035
entities.type: outcome
entities.text: forced vital capacity ( ΔFVC )
entities.id: 1036
entities.type: participant
entities.text: COPD patients