| http://www.w3.org/ns/prov#value | - Among such suitable freeze thaw agents there can be mentioned, for example, urea, polyhydric alcohols such as glycerol, sorbitol, mannitol, ethylene glycol, propylene glycol, polyethylene glycol, glucose, sucrose and the like as well as water soluble nontoxic polymeric agents such as dextran, polyvinylpyrrolidone and the like.
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