Inclusion Criteria:

- Male and female subjects above age 18 of any ethnicity will be enrolled in this
study.

Exclusion Criteria:

- Subjects will be excluded from the study if they have significant skin disease which
would not allow manipulation of their photographs consistent with the rest of the
subjects.

- Since the study instructions are in English, Non-English speakers will be excluded.

- Those with co-morbidity sufficiently severe to prevent them from being able to
perform a SSE will be excluded.

- In addition, those with cognitive impairment who are unable to give informed consent,
or to understand the study instructions given to them, will be excluded.