... is an interactive calculator that estimates a womans risk of developing breast cancer. Also known as The Gail Model. Designed ... Breast Cancer Risk Assessment Tool: Online Calculator (The Gail Model). The Breast Cancer Risk Assessment Tool (BCRAT), also ... Women in certain other subgroups (see Other Risk Assessment Tools section). Although a womans risk may be accurately estimated ... This tool cannot accurately estimate breast cancer risk for:. *Women carrying a breast-cancer-producing mutation in BRCA1 or ...