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.
For each sample, the ratio of digestion resistant VAPA-APCDD1 DNA (chr18) and ZFY DNA (chrY) is plotted. The reference interval of the euploid ratios was calculated as 0.34–3.04 (bound by the dotted lines).
