5 Cells and tissue, namely stem cells, cells differentiated from stem cells and biological tissue in the nature of T-cells, natural killer cells, dendritic cells, skeletal myoblasts, stromal cells, cardiomyocytes, neuronal cells, heart tissue, heart muscle tissue, muscle tissue, skeletal muscle tissue, connective tissue, neuronal tissue, and artificial thymus for veterinary and medical purposes; Preparations for the renewal and regeneration of organs for veterinary and medical purposes, namely, three-dimensional culture systems primarily comprised of biological tissue cultures; Living tissue grown from stem cells for veterinary and medical purposes