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JSTOR, 1998
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Springer Science and Business Media LLC, 1996
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Elsevier BV, 1978
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Elsevier BV, 2002
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Elsevier BV, 2001
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Elsevier BV, 2009
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Trans Tech Publications Ltd., 2008
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Ovid Technologies (Wolters Kluwer Health), 2008
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Ovid Technologies (Wolters Kluwer Health), 2008
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Trans Tech Publications Ltd, 2008
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Elsevier BV, 2006
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Royal Society of Chemistry (RSC), 2000
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Journal of Neurosurgery Publishing Group (JNSPG), 1997
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Elsevier BV, 1997
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Elsevier BV, 1996
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Wiley, 1991
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Wiley, 1987
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American Society of Clinical Oncology (ASCO), 2015
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Elsevier BV, 2013
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Springer Science and Business Media LLC, 2009