TY  - RPRT
TI  - Urine testing schedules in methadone maintenance.
AU  - H D Kleber
AU  - L C Gould
PY  - 1971
DO  - 10.1001/jama.1971.03180260057029
UR  - https://pubmed.ncbi.nlm.nih.gov/5108230/
ID  - 5108230
ER  -