| CAM | Chorioallantoic membrane |
| JZ | Junction zone |
| DC | Decidual cell |
| CTB | Cytotrophoblastic discrete cell |
| STB | Syncytiotrophoblast |
| H&E | Hematoxylin and eosin |
| VK | von Kossa |
| CRL | Crown–rump length |
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.