TY  - RPRT
TI  - Urine testing: a comparison of five current methods for detecting morphine.
AU  - D H Catlin
PY  - 1973
DO  - 10.1093/ajcp/60.5.719
UR  - https://pubmed.ncbi.nlm.nih.gov/4356451/
ID  - 4356451
ER  -