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. 2015 Mar 1;44(1):10. doi: 10.1186/s40463-015-0061-y

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© Hugh et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Scatter plot of Sniffin’ Sticks scores, by age of participant, with line of best fit. A, All participants included (R² = 0.20; line of best fit: score = 4.17 x age + 30.4). B, Two outliers removed (R² = 0.31; line of best fit: score = 5.1 x age + 24.5).