The breast is close to the heart.
Fletcher
S W
SW
Fletcher
R H
RH
D000328:Adult; D000367:Age Factors; D000368:Aged; D001943:Breast Neoplasms / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008327:Mammography; D008403:Mass Screening; D008875:Middle Aged