S. Tytko

Antioxidants and cancer. Part VI. Selenium and age-adjusted human cancer mortality.

R. Shamberger, C. E. Willis, S. Tytko, 1976, Archives of environmental health.

Antioxidants and Cancer

R. Shamberger, C. E. Willis, S. Tytko, 1976 .

Antioxidants and cancer. I. Selenium in the blood of normals and cancer patients.

R. Shamberger, C. E. Willis, S. Tytko, 1973, Journal of the National Cancer Institute.

The coma profile.

S. Benjamin, C. E. Willis, S. Tytko, 1973, Cleveland Clinic quarterly.

Antioxidants and cancer: selenium distribution and human cancer mortality in the United States, Canada and New Zealand

R. Shamberger, C. E. Willis, S. Tytko, 1973 .