The American Journal of Gastroenterology · 2001 · 122 citations · 32 references
These current data showed that NK cell activity may be related to tumor volume and dissemination. Measurement of preoperative NK cell activity may be pertinent for the prognosis of patients with gastric cancer and for follow-up clinical management.
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The Statistical Analysis of Failure Time Data
Walter R. Young · Journal of Quality Technology · 1981 · 1.7K citations