1. Drug Testing in the Workplace—Are Methods Legally Defensible?;Hoyt;JAMA,1987
2. Medical Labs, Trusted As Largely Error-Free, Are Far From Infallible;Bogdanich;The Wall Street Journal,1987
3. Labs Offering Workplace Drug Screens In New York Have Higher Error Rate;Bogdanich;The Wall Street Journal,1987
4. New Directions in Drug Screening;Fay;Security Management,1986