TY  - RPRT
TI  - Isomeric amphetamines--a problem for urinalysis?
AU  - F P Smith
AU  - D A Kidwell
PY  - 1991
DO  - 10.1016/0379-0738(91)90147-b
UR  - https://pubmed.ncbi.nlm.nih.gov/1748353/
ID  - 1748353
ER  -