title: Reduction in haemoglobin after knee joint surgery.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000097:blood / Q000628:therapy; D001178:Arthroplasty; D001799:Blood Sedimentation; D005260:Female; D006452:Hemoglobinometry; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D007019:Hypoproteinemia / Q000209:etiology*; D007717:Knee / Q000601:surgery*; D007719:Knee Joint; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011300:Preoperative Care; D012217:Rheumatoid Factor; D013997:Time Factors
chemical_list: D006454:Hemoglobins; D012217:Rheumatoid Factor