TY  - RPRT
TI  - Models for effective prevention.
AU  - C L Perry
AU  - S H Kelder
PY  - 1992
DO  - 10.1016/1054-139x(92)90028-a
UR  - https://pubmed.ncbi.nlm.nih.gov/1390786/
ID  - 1390786
ER  -