Add Yahoo as a preferred source to see more of our stories on Google. Revised guidelines for drug-testing hair scheduled for publishing next year. (Photo: Jim Allen/FreightWaves) WASHINGTON — The U.S.
Marie Law, Director of Toxicology at AlphaBiolabs, examines the role of cut-off levels, and the wider range of factors that ...
A suburban Chicago high school is introducing a new kind of test for its students this fall – mandatory alcohol testing. St. Viator High School in Arlington Heights, Ill., plans on using hair samples ...
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