doi: http://dx.doi.org/10.1017/S0043933915002755. Published online by Cambridge University Press, 22 January 2016.
The publisher would like to announce that the following author's name was missing from the above publication (Naz et al.) - ZIA-UR-RAHMAN.
The correct author list is S. NAZ, M. IDRIS, M.A. KHALIQUE, ZIA-UR-RAHMAN, I.A. ALHIDARY, M.M. ABDELRAHMAN, R.U. KHAN, N. CHAND, U. FAROOQ and S. AHMAD, and has been corrected in the original article.
The publisher apologizes to the authors and readers for this omission.