Relationships between unprotected UV tolerance and skin color/age/season. (IMAGE)

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Relationships between unprotected UV tolerance and skin color/age/season.

Caption

Relationships between unprotected UV tolerance and skin color/age/season. 

Credit

YU SUN, et al.

Usage Restrictions

Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.

License

CC BY-NC-ND

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