Quality of life (QOL) scores for cats during the study.

<p>QOL was subjectively determined at each visit after a discussion between the veterinarian and owner (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0200414#pone.0200414.t003" target="_blank">Table 3</a>). At each visit, blocks with different colours represent the. proportion of cats assigned an activity score of -1 (red), 0 (blue) and 1 (green), respectively. Visits with different superscripts (a, b, c and d) are significantly different from one another at <i>P</i><0.05.