instruction:
Given an abstract, generate a keyword (a noun phrase) that best describes the focus or contribution of the paper. Such keywords can be directly from the given abstract or outside it.
question:
Abstract: Operative management of a patient with septic thrombosis from Candida organisms of the subclavian and central veins is described. Diagnosis was suspected on the basis of positive blood and catheter tip cultures, indium-labeled leukocyte scan, and bilateral upper extremity phlebograms. Venous thrombectomy with a Fogarty catheter of the upper extremity central veins was performed after a superior vena cava Greenfield filter had been placed to prevent pulmonary embolism. The thrombus culture was positive for Candida albicans, and the reestablishment of vein patency in conjunction with amphotericin B therapy resulted in cure. This technique allows a definitive diagnosis of septic central thrombosis to be made and reestablishment of vein patency may also enhance antibiotic therapy.
answer:
Amphotericin B

question:
Abstract: Atlanto-axial rotatory fixation is one of a spectrum of rotatory abnormalities of the atlanto-axial joint. Rotatory fixation without anterior displacement of the atlas (Type I) has been reported in only a few cases in which there has been a prolonged interval between injury and diagnosis. The majority of these cases eventually required cervical fusion for persistent deformity or instability. Two cases are presented in which this diagnosis was made early with the aid of rotated odontoid radiographs, tomography and computerised axial tomography. Treatment by a short period of halter traction achieved reduction and early return of function. The authors conclude that early recognition and treatment of this rare condition may prevent the subsequent deformity and instability for which cervical fusion has been required.
answer:
Atlanto-Axial Joint

question:
Abstract: The T-cell antigen receptor binds antigen in association with a cell surface molecule encoded by the major histocompatibility complex (MHC). MHC restricted recognition of antigen by this receptor leads to the complex pattern of programmed gene expression that characterizes T-cell activation. The eventual understanding of human T-cell function will require the complete elucidation of the structure of the human T-cell antigen receptor. On human T cells, clonally determined, disulphide-linked alpha and beta chains of the receptor are non-covalently and stoichiometrically associated with three additional polypeptides known as the T3 complex. These receptor subunits are glycoproteins of relative molecular mass (Mr) 25,000 (25K) and 20K (gamma and delta) and a non-glycosylated 20K protein (epsilon). Our studies of murine T cells show that the mouse T-cell antigen receptor consists of at least seven distinct polypeptide chains. In addition to clonotypic alpha and beta chains, the murine complex consists of glycoproteins of 26K and 21K and endoglycosaminidase F (endo F)-insensitive polypeptides of 25K, 21K and 16K. The latter, which we have termed zeta (zeta), exists as a homodimer within the complex. The 26K component (gp26) has been shown to be the murine analogue of the human delta chain. Other cross species homologies remain to be established, however none of the described human receptor components appear similar to the murine zeta polypeptide. We report here the use of an antiserum raised against the murine zeta subunit to identify a previously unrecognized component of the human T-cell antigen receptor. This human protein is T-cell specific and biochemically similar to the murine zeta polypeptide.
answer:
Animal