Lorainne Tudor Car, Michelle H. M. M. T. Van Velthoven, Serena Brusamento, Hoda Elmoniry, Josip Car, Azeem Majeed, Peter Tugwell, Vivian Welch, Ana Marusic, Rifat Atun
PLoS One. 2012; 7(4): e35268. Published online 2012 April 27. doi: 10.1371/journal.pone.0035268