title: The authors reply.
authors.affiliation: Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.
authors.forename: Anthony B
authors.initials: AB
authors.lastname: Miller
authors.affiliation: Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.
authors.forename: Claus
authors.initials: C
authors.lastname: Wall
authors.affiliation: Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.
authors.forename: Cornelia J
authors.initials: CJ
authors.lastname: Baines
authors.affiliation: Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada.
authors.forename: Ping
authors.initials: P
authors.lastname: Sun
authors.affiliation: Child Health Evaluative Services, The Hospital for Sick Children, Toronto, Ontario, Canada.
authors.forename: Teresa
authors.initials: T
authors.lastname: To
authors.affiliation: Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada.
authors.forename: Steven A
authors.initials: SA
authors.lastname: Narod
mesh_terms: D001943:Breast Neoplasms / Q000453:epidemiology*; D055088:Early Detection of Cancer / Q000379:methods*; D005260:Female; D005544:Forecasting; D006801:Humans; D008327:Mammography / Q000379:methods*; D008403:Mass Screening / Q000379:methods*