Hormone replacement therapy.
MacMahon
S
S
North
D
D
D000368:Aged; D000369:Aged, 80 and over; D001943:Breast Neoplasms / Q000139:chemically induced*; D015914:Estrogen Replacement Therapy / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008875:Middle Aged