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.
Kaplan-Meier curves depict the probability of loss of ambulation (LoA) by age and collagen VI–related dystrophy (COL6-RD) phenotypic classification BM = Bethlem myopathy; UCMD = Ullrich congenital muscular dystrophy.
