TY  - RPRT
TI  - Protective effects of cervical screening.
AU  - S A Norman
AU  - J A Berlin
AU  - E O Talbott
PY  - 1991
DO  - 10.1016/0895-4356(91)90085-n
UR  - https://pubmed.ncbi.nlm.nih.gov/2010790/
ID  - 2010790
ER  -