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.
Quality/risk of bias criteria for sample identification, confirmation of syndrome and ASD assessment
aWhere individuals were recruited as part of a larger ongoing study, if the recruitment strategy of this study is described, this is coded. If not described, it is coded as 1 by default, indicating the sample has come from one source (i.e. the larger ongoing study)
