A computer-based program is presented to be used with digitized frontal and basal photographs. SymNose enables the user to quantify asymmetry of the front view of the lip and nose and of the nose from the base view, using the area of mismatch of one side reflected over the other. There is a facility to transfer results to a spreadsheet. The program is simple and quick to use and runs on Apple Macintosh OSX 10.4 or later, power and Intel-based systems. The outline of a feature can be drawn using the mouse or digitizing pad. The program, together with Help files, is available from the authors.
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