Primacell* Human Endothelium FibrOut* kit^ Primacell* Human Endothelium FibrOut*: Fibroblast Inhibitory System (for 500 ml medium), A mixture of cis-OH-proline, ricin toxin, gentamycin and formulated serum substitutes, Stability/Storage: Stable at the room temperatures, stored at 4-8 deg C