… Women with a family history of breast cancer are more likely to be non-users, and HRT
users are likely to be of higher social class and education. Laya et al. (45) have provided direct …

… of misclassification of tumor types is likely to be present. A central pathologic review that …
to be a result of misclassification of tumor type, almost all type II tumors would have to be …

… Three distinct effects can be seen, 2 of which may be regarded as antiestrogenic: in the
endometrial cells themselves, progestins increase the ac tivity of the dehydrogenase that …

… the residual genetic variance is likely to be due to variants conferring more moderate risks. …
be expected by chance, indicating that many additional common susceptibility alleles may be …

… or beyond, would be expected to be quantitatively less important. … to be explained by an
artifact of the proportional method. … , the patterns we reported would be qualitatively unaffected. …

Breast cancer is the most common cancer among women. Common variants at 27 loci have
been identified as associated with susceptibility to breast cancer, and these account for ∼9…

… Estrogen can be derived from both endogenous and exoge nous sources. Endogenous
sources in women include secretion of estrogens from the ovary, operative only during …

Aflatoxins have long been suspected to be human hepatic carcinogens but no direct study
was feasible until assays to measure individual aflatoxin exposure became available. We …

… be compared across ethnic and social strata and should be widely generalizable. Nevertheless,
some selection bias is inevitable, as reflected in the data on current smoking in table 5. …

… This effect of progesterone would be in sharp distinction to its effect on endometrial tissue, …
been found to be associated with increased breast cancer risk", and this fact would need to be …