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. 2013 Jul;3(7):515–522. doi: 10.1016/S2221-1691(13)60106-9

Figure 1. Evolution and prevalence of ARDR in developed and developing world as two different but inter-connected ecological niches.

Figure 1.

The red box and the grey box are indicators of the developed and developing worlds respectively, while the number of dots in each represents the relative frequency of ARDR. In hypothesis I, ARDR is more prevalent in the developed world as compared to the developing world, while in hypotheses II and III; ARDR is more prevalent in the developing world or has an almost equal prevalence among the two niches respectively.