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Structural features and process artifacts in LMWHs. Upper panel: Major structures of a LMWH prepared using heparin lyase I, Tinzaparin (I), UFH from porcine intestine (II) and commercial LMWH, Enoxaparin (III). (X= SO3− or H; Y=SO3− or Ac−; Z= SO3−, Ac− or H). Lower panel: Process artifacts present in LMWHs prepared using chemical processes.
