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.
Two-dimensional projections of the three-dimensional digital reconstructions of the four cells selected for modelling. Cell 1 and Cell 2 were from 14-day-old, Cell 3 from 15-day-old and Cell 4 from 21-day-old animals. Axons, which were also reconstructed, are omitted for clarity.
