title: Lip colour affects perceived sex typicality and attractiveness of human faces.
authors.affiliation: Department of Experimental Psychology, University of Bristol, 12A Priory Road, Bristol BS8 1TU, UK. ian@perceptionlab.com
authors.forename: Ian D
authors.initials: ID
authors.lastname: Stephen
authors.forename: Angela M
authors.initials: AM
authors.lastname: McKeegan