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Authors
He, Q
Wang, Z
Liu, G
Daneshgari, F
MacLennan, G T
Gupta, S
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Article History
Received: 14 May 2015
Revised: 4 August 2015
Accepted: 17 August 2015
First Online: 22 September 2015
Competing interests
: The authors declare no conflict of interest.
