Abstract Background Our purpose is to develop a testable biological hypothesis to explain the known increased risk of breast cancer associated with extensive percent mammographic density (PMD). and to reconcile the apparent paradox that although PMD decreases with increasing age. breast cancer incidence increases. Methods We used the Moolgavkar model of carcinogenesis as a framework t... https://www.spidertattooz.com/Coast-Guard-E7-Rating-Badge-Yeoman-YN-blue/