Informed consent. Explicit consent is not needed for studies using medical records.
Brewster
D H
DH
Bain
M R
MR
Chalmers
J W
JW
Gould
A
A
Dewar
J A
JA
George
W D
WD
D001943:Breast Neoplasms / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007258:Informed Consent; D008485:Medical Audit; D008499:Medical Records; D012606:Scotland / Q000453:epidemiology