in order to determine the influence of strain and sex on local carcinogenesis in rat mammary tissue , 1 mg of 7,12-dimethylbenz ( a ) anthracene ( dmba ) was dusted directly onto the exposed mammary gland of 30-day-old long-evans ( l-e ) rats and sprague-dawley ( s-d ) rats .
C1521747
mammary tissue
C0929301
mammary gland