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Testing vision can be testing: Worth's ivory-ball test
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Testing vision can be testing: Worth's ivory-ball test
Publication history
- First published April 16, 2012.
Online issue publication
March 22, 2016
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© 2012, Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.