estrogen
PARTICIPANTS: 97 women with confirmed       incident breast cancer and 244 randomly selected controls; all women were white,        65 years of age or older, and were not receiving estrogen.
PARTICIPANTS: 97 women with confirmed       incident breast cancer and 244 randomly selected controls; all  @OBJECT$  were white,        65 years of age or older, and were not  @PREDICAT$   @SUBJECT$ .