Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Example of a 3D facial surface with anatomical landmarks identified. Landmark abbreviations: n (nasion); prn (pronasale); sn (subnasale); ls (labiale superius); sto (stomion); li (labiale inferius); sl (sublabiale); gn (gnathion); ch (chelion) cph (crista philtri); sbal (subalare); t (tragion); al (alare); ex (exocanthion); en (endocanthion).
