https://pubmed.ncbi.nlm.nih.gov/2433788/
Absorption of heparin, LMW heparin and SP54 after subcutaneous injection, assessed by competitive...
Unfractionated heparin, pentosan polysulphate (SP54) and the low molecular weight heparins CY216 and CY222 were injected subcutaneously at a minimum of weekly...
https://www.semanticscholar.org/topic/Xylan-SP54/12257305
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