| http://www.w3.org/ns/prov#value | - It is also possible to use other cryoprotectants such as glycerol, hydroxyethyl starch or a combination of the two, and a combination of these with DMSO. Suitable methods are described for example in WO 96/24018, U.S. Pat. No. 5,891,617 or U.S. Pat. No. 5,298,417.
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