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Science News. December 27, 2014, Vol. 186 Issue 13, p6, 1 p.
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Science News. November 15, 2014, Vol. 186 Issue 10, p6, 1 p.
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Science News. July 26, 2014, Vol. 186 Issue 2, p13, 1 p.
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Science News. April 7, 2012, Vol. 181 Issue 7, p32, 1 p.
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Science News. November 18, 2006, Vol. 170 Issue 21, p330, 3 p.
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Science News. April 12, 2003, Vol. 163 Issue 15, p234, 3 p.
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Science News. July 12, 1997, Vol. 152 Issue 2, 31.
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