1. Retinoids inhibit the mitogenic activity of tumor promoting phorbol esters on human lymphocytes;Abb;Int. J. Cancer,1980
2. Thymus, Thymic Hormones and T Lymphocytes;Axberg,1980
3. Inhibition of interferon production by RA (vitamin A acid);Blalock;Tex. Rep. Biol. Med.,1977
4. Interferon and NK cells in resistance to virus persistently infected cells and tumors;Bloom,1980
5. Development of NK activity during invitro culture;Bolhuis,1980