TY  - RPRT
TI  - Closing the surveillance gap.
AU  - W E Halperin
AU  - D L Ordin
PY  - 1996
DO  - 10.1002/(sici)1097-0274(199602)29:2<223::aid-ajim14>3.0.co;2-5
UR  - https://pubmed.ncbi.nlm.nih.gov/8821367/
ID  - 8821367
ER  -