Beral completed her training in 1972 and began working for the London School of Hygiene and Tropical Medicine for a number of years.
In August 2003, Beral's group published results showing that taking HRT increases a woman's risk of developing breast cancer with an estimated 20,000 UK women aged 50-64 having possibly developed the disease between 1993 and 2003 due to HRT use [REF].