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FMB
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Risk of esophageal cancer following breast cancer
according to radiotherapy dose
Design
Nested case–control study of esophageal cancer among 289 748 ≥5-year
survivors of female breast cancer from five population-based cancer registries
(252 cases, 488 individually matched controls), with individualized radiation
dosimetry and information abstracted from medical records.
OR = exp(∑
j
α
j
x
j
)
[1 + βz]
x
j
: clinical factors
z: radiation dose in Gy
β: excess OR per Gy