“…Later investigations utilizing radioactive zinc ( 65 Zn) showed decreased absorption of this isotope by neoplastic cells 7,8 . A decreased content of zinc has been reported in the granulocytes of multiple myeloma, Hodgkin's disease, and chronic lymphocytic leukemia 9–11 . Significantly lower serum zinc levels have also been observed in lymphoma, 12 chronic lymphocytic leukemia, 12 sickle cell anemia, 13 acrodermatitis enteropathica, 14 and various skin diseases, particularly psoriasis 15 .…”