Letters to the Editor. (June 2013) - Roberts, Greg; Wahab, Mohd Shahezwan Abd; Ali, Aida Azlina; Zulkifly, Hanis Hanum; Welch, Susan A; Munzner, Eyra E; Richardson, Katrina L; Thunga, Girish; Patel, Hiren; Robert, Neethu; Nair, Sreedharan; Kunhikatta, Vijayanarayana; et al.