Assertion: gay man's risk | /r/HasProperty | eliminated by the use of questionnaires
Facets:
value: almost
type: DEGREE
value: since 1982
type: TEMPORAL
Source sentences:
text: Since 1982, the risk for HIV infection transmitted via transfusion has been almost eliminated by the use of questionnaires to exclude donors at higher risk for HIV infection and performing screening tests with highly sensitive equipment to identify infected blood donations.