TY  - RPRT
TI  - Testing for drug abuse.
AU  - E C McGuffey
AU  - B A Mullins
PY  - 1994
DO  - 10.1016/s0160-3450(15)30496-7
UR  - https://pubmed.ncbi.nlm.nih.gov/8192093/
ID  - 8192093
ER  -