Funding for this research was provided by:
Dean Faculty of Science, University of Karachi (DFS-2012-13)
Received: 19 October 2018
Accepted: 30 January 2019
First Online: 13 February 2019
: The experiment was conducted according to the rules of Institutional Animal Ethics Committee (IAEC), University of Karachi.
: Not applicable.
: The authors declare that they have no competing interests.
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