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.
Numbers of in vivo and in vitro derived embryos transferred [14]. The data was collected by national data collectors who volunteered to collect the information from the embryo transfer (ET) practitioners within their country, either directly from these practitioners or indirectly via the national ET association and entered on the IETS (International Embryo Transfer Society) database.
