“…In other surveys in which physicians are approached by mail but offered paper and online response, a much lower proportion responded online, for example, 7.8% (Lusk et al, 2007), 2% (Bonevski, Magin, Horton, Foster, & Girgis, 2011;Nicholls et al, 2011), or 6.2% (Grava-Gubins & Scott, 2008. In a recent survey of physicians in New South Wales, Australia, no one chose to respond online (Pit, Hansen, & Ewald, 2013). The proportion responding online in MABEL is also greater than those doing so in general, nonmedical, populations, for example, 14.4% respondents did so online in a survey of Andalusians living abroad (de Rada & Domínguez, 2015), 12.% of respondents did so online in a survey of colorectal cancer patients (Horevoorts et al, 2015), and 20% of respondents did so online in a general public survey (Smyth et al, 2010).…”