| http://www.w3.org/ns/prov#value | - But at the time, no degradable polymer was sufficiently strong to do the job and also visible under X-ray during implantation. (The high molecular-weight compounds known as polymers lend themselves to medical applications because of their versatility; rubber and shellac are examples of natural polymers, and synthetic polymers include nylon and PVC.) Today, polymer science has caught up with Kohn??
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