Assertion: saline solution's use | /r/HasProperty | measured by forced expiratory volume
Facets:
value: in 1 second
type: TEMPORAL
Source sentences:
text: It concluded that regular use of hypertonic saline by CF patients over 12 results in a mild improvement in lung function at four weeks as measured by forced expiratory volume in 1 second (FEV1, or the volume of air that a patient can breathe out in 1 second).