TY  - RPRT
TI  - Primary prevention: knowledge and action.
AU  - A J Tuyns
AU  - A J Sasco
PY  - 1993
DO  - 10.1097/00008469-199303000-00001
UR  - https://pubmed.ncbi.nlm.nih.gov/8461871/
ID  - 8461871
ER  -