2001 "Gender ID"
Subjects were asked to pose in their most masculine and feminine personas.
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID
Gender ID