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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 356 (1992), S. 137-140 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PCBs, first manufactured in 1929, were not reported in environmental samples until 1966. Their industrial use has been restricted in Europe and North America since the 1970s2'8. Even today, however, PCB concentrations in biota are high enough to be implicated in causing adverse reproductive ...
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The results of ultrasound (US) head scans performed in a children's hospital over a 6 month period have been reviewed and correlated with the results of computed tomography (CT). Two hundred and twenty-four scans were performed on 141 children ranging in age from a few days to 18 months. The clinical indications with which these children were referred were: abnormal neurological symptoms or signs, screening for hydrocephalus in neural tube defects (NTD), enlarging heads, suspected intra-cranial haemorrhage (ICH) and its sequelae, suspected complications of meningitis, investigations of suspected syndromes and following trauma. Twenty-nine of these children also had CT scans. There was good correlation between the two examinations and in only one case (a subdural collection) was a serious abnormality missed by US. US head scanning has been found to be a very reliable technique. It is the initial investigation of choice for imaging the brain of neonates and infants and in many instances it is the only investigation necessary.
    Type of Medium: Electronic Resource
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