Received: 10 March 2018
Accepted: 8 May 2018
First Online: 19 July 2018
Ethics approval and consent to participate
: The study was given the approval by Humans Ethics Committee (HEC), University College of Pharmacy, University of the Punjab, Lahore, Pakistan with reference no. HEC/PUCP/1943.
: The authors declare that they have no competing interests.
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