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STS090-350-002
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STS090-350-002

June 7, 2011
Astronaut Dafydd R. (Dave) Williams, mission specialist representing the Canadian Space Agency (CSA), is pictured during a Neurolab pulmonary function test. Williams joined four NASA astronauts and two payload specialists for 16-days aboard the Space Shuttle Columbia in support of the Neurolab mission.


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