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Real challenges in virtual worlds


  1. Correspondence to Professor Russell L Gruen, NTU Institute for Health Technologies, 50 Nanyang Avenue, Singapore 639798, Singapore; rgruen{at}
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Gruen RL
Real challenges in virtual worlds

Publication history

  • Received February 22, 2017
  • Accepted February 24, 2017
  • First published March 24, 2017.
Online issue publication 
March 24, 2017

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