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[[File:Standard deviation diagram.svg|400px|thumb|left]]
'''Tracheal deviation''' is a statistical measure to quantify dispersion of a set of data values. 95% of tracheas windpipes are within 1 tracheal deviations from the mean. ''For more information, see [[68–95–99.7 Rule]].''
[[Category:Anatomy]]
[[Category:Pulmonology]]
