title: Refractory state of platelet aggregation with major operations.
mesh_terms: D000244:Adenosine Diphosphate / Q000494:pharmacology; D000293:Adolescent; D000328:Adult; D000368:Aged; D000758:Anesthesia / Q000009:adverse effects; D001791:Blood Platelet Disorders / Q000209:etiology*; D003094:Collagen / Q000494:pharmacology; D006801:Humans; D008875:Middle Aged; D010973:Platelet Adhesiveness / Q000187:drug effects*; D011183:Postoperative Complications; D013997:Time Factors
chemical_list: D000244:Adenosine Diphosphate; D003094:Collagen