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Fig. 3 | Health and Quality of Life Outcomes

Fig. 3

From: A narrative synthesis of research evidence for tinnitus-related complaints as reported by patients and their significant others

Fig. 3

World map illustrating the distribution of study sites for all included studies, inspired by the World Health Organization (WHO) regional classification, but with Region of the Americas separated into North and South and with Australia and separated from Western Pacific region, because of cultural and language differences. Regions are colour coded in different shades of blue and the values denote the number of studies contributing to the review from that country

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