TY  - RPRT
TI  - Counting the uncatchable? An epidemiological method for counting drug misusers.
AU  - S Cox
AU  - M Shipley
PY  - 1997
DO  - 10.1007/bf00800663
UR  - https://pubmed.ncbi.nlm.nih.gov/9029983/
ID  - 9029983
ER  -