Surgical skin grafts being made from artificial materials; synthetic allografts in the nature of skin grafts; bioresorbable surgical skin grafts being made from artificial materials; bioresorbable synthetic allografts in the nature of skin grafts; surgical skin grafts being made from artificial materials which are porous; surgical skin grafts being made from artificial materials in the form of foam, sheet or mesh; surgical grafts comprised of (artificial material) for use in soft tissue reinf...