“…During the clinical trials, an important aspect for medical researchers is the meaningfulness of the data gathered, both from a scientific and a medical point of view, in order to be able to translate it into valid knowledge (Allen et al, 2008;Conley et al, 2008;Cook et al, 2009;Darwish and Hassanien, 2011;Kang et al, 2010;Kaye, 2010;Noury et al, 2011;Romdhane et al, 2012;Viswanathan et al, 2012;Wherton and Monk, 2008). The accuracy and reliability of such data has to be prioritised, according to their relevance, importance and urgency (Darwish and Hassanien, 2011;Viswanathan et al, 2012).…”