| http://www.w3.org/ns/prov#value | - e of the viability of biological materials, including cells, tissues and organs, for prolonged periods of time; for the treatment of leukemiaUS61804049 Apr 199730 Jan 2001The Board Of Trustees Of Southern Illinois UniversityMinimal essential medium for viability in environment containing less than 0.25 % carbon dioxide; free of ferrous sulfate, glutamate and aspartateUS618752928 Apr 199813 Feb 200
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