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.
Real-time PCR amplification plots using the CDC assay from SMA quality assurance materials from cell lines established from de-identified donors with (A) normal SMN1 exon 7 sequence, (B) heterozygous deletion of SMN1 exon 7 sequence, and (C) homozygous deletion of SMN1 exon 7 sequences.
