Word: knownabout
(lookup in dictionary)
(lookup stats)
Dates: during 1960-1969
Sort By: most recent first
(reverse)
This year donors were to be asked whether they had smoked marijuana in the past two weeks or had taken hard drugs within the past half year. If so they were not allowed to donate blood. A Red Cross official said this procedure was initiated because too little was knownabout the effect of marijuana and hard drugs on blood. However, many donors said that they had not been asked these questions...
| 1 |