The present invention relates to mixtures of polysaccharides derived from heparin having a mean molecular weight of 1500 to 3000 Daltons and an anti-Xa/anti-IIa ratio greater than 30, their method of preparation and pharmaceutical compositions containing them.

 
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> METHOD OF USING A COBALT-AMINE BASED METAL COMPLEX AS AN ANTIVIRAL COMPOUND AND A METHOD FOR THE PREPARATION OF FUNCTIONALIZED ANALOGS THEREOF

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