title: Heparin resistance during cardiopulmonary bypass.
mesh_terms: D002315:Cardiopulmonary Bypass; D004351:Drug Resistance; D006493:Heparin / Q000494:pharmacology / Q000627:therapeutic use*; D006801:Humans; D013924:Thrombophlebitis / Q000517:prevention & control
chemical_list: D006493:Heparin