Cells for medical use; stem cells; living cells for medical use; biological implants; surgical implants comprised of living tissues; surgical implants grown from stem cells [living tissues]; implants comprising living tissue; surgical implants grown from stem cells; implants for guided tissue regeneration; arterial grafts; skin grafts; transplants [living tissues]; implantable textile material to encourage the growth of tissue; implantable materials for use in guided tissue regeneration; bone...