Previous work of ours has demonstrated that a significant amount of natural killer ( NK ) activity variance after surgery in stage I and II breast cancer patients could be accounted for by both the estrogen receptor ( ER ) status of the tumor and by social factors , namely , perceived social support and seeking social support as a general coping strategy .
previous work of ours has demonstrated that a significant amount of natural killer ( nk ) activity variance after surgery in stage i and ii breast cancer patients could be accounted for by both the estrogen receptor ( er ) status of the tumor and by social factors , namely , perceived social support and seeking social support as a general coping strategy .
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