| http://www.w3.org/ns/prov#value | - Optionally, the valve body may be constructed without the reinforcing ring 529 and may be attached to the ascending aorta by an annular sewing or suturing ring 524 which is secured to the valve body by welding, cementing or other suitable means and to the ascending aorta by sutures 526 all as shown in FIG. 18.
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