Three tubes of blood will be drawn from each subject. Two members of the study team will also independently assess each subject for the degree to which various radiation-induced soft tissue changes are evident. Subjects will be put into three groups according to the severity of the soft tissue changes which are noted, and the results of the blood tests for members of each group will be analyzed to determine whether a correlation with cosmetic outcomes can be determined. If the results are promising, they will be studied further and used as the basis for future prospective clinical trials.