TY  - GEN
AU  - MacCormick,R E
TI  - Canadian National Breast Screening Study
SN  - 0820-3946
PY  - 1993///0809
KW  - Breast Neoplasms
KW  - diagnostic imaging
KW  - Canada
KW  - Female
KW  - Humans
KW  - Mammography
KW  - Mass Screening
KW  - Middle Aged
N1  - Publication Type: Letter; Comment
ER  -