title: Total hip replacement: rotating versus fixed and metal versus ceramic heads.
mesh_terms: D000368:Aged; D000535:Aluminum; D002516:Ceramics; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008670:Metals; D008875:Middle Aged; D011474:Prosthesis Design
chemical_list: D008670:Metals; D000535:Aluminum