| http://www.w3.org/ns/prov#value | - Enzymes of America has designed a special filter that collects important urine proteins, and these filters have been installed in all of the men's urinals in the 10,000 portable outhouses owned by the Porta-John company, a subsidiary of Enzymes of America.Urine is known to contain minute amounts of proteins made by the body, including medically important ones such as growth hormone and insulin.
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