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  • 1
    Electronic Resource
    Electronic Resource
    Askin's tumor in children: report of two cases (1992)
    Springer
    Pediatric surgery international 7 (1992), S. 73-75 
    Details
    ISSN: 1437-9813
    Keywords: Askin's tumor ; Peripheral neuroectodermal tumors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Two cases of Askin's tumor of the thoracopulmonary region in children (a 6-year-old female and a 5-year-old male) are presented. Primary surgery was unfeasible and despite aggressive chemotherapy both died within 304 and 300 days, respectively, from the onset of the disease. Although rare, Askin's tumor should be considered in the differential diagnosis of any thoracopulmonary mass in childhood and adolescence through appropriate histology and immunohistochemistry of incisional biopsies. Its prognosis is poor unless radical surgery is performed as soon as possible: unresectable tumors can be treated with chemotherapy, but prolonged chemotherapy yields potentially lethal complications. We conclude that only early diagnosis and cytogenetic recognition can give children with Askin's tumor a chance of curative surgery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00181010
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A Generalization of the Stone–Von Neumann Theorem to Nonregular Representations of the CCR-Algebra (1999)
    Springer
    Letters in mathematical physics 47 (1999), S. 307-320 
    Details
    ISSN: 1573-0530
    Keywords: Stone–von Neumann theorem ; Weyl algebra ; measurable representations.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract We give a classification, up to unitary equivalence, of the representations of the C*-algebra of the Canonical Commutation Relations which generalizes the classical Stone–von Neumann Theorem to the case of representations which are strongly measurable, but not necessarily strongly continuous. The classification includes all the (nonregular) representations which have been considered in physical models.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007599222651
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    Paper (German National Licenses)
    Fulltext
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