Answer the following question: Facts:   - field: epidemiology -rcb- -rcb-      - name: dame valerie beral    - nationality: australian , british    - birth place: australia   Based on these bullet points, write a short biography describing the life of valerie beral .
Answer:
dame valerie beral ac dbe frs frcog fmedsci -lrb- born 1946 -rrb- is an australian-born british epidemiologist , academic and a preeminent specialist in breast cancer epidemiology .she is professor of epidemiology , a fellow of green templeton college , oxford and has been the head of the cancer epidemiology unit at the university of oxford and cancer research uk since 1989 .