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.
Distribution of magnetic resonance scans, according to 2020 year and control periods. a Total number of magnetic resonance scans in 2020, and control periods 2018 and 2019. b Longitudinal dynamics of the monthly number of magnetic resonances during the study period. *Dash lines represent ± 2 standard deviations the mean number of magnetic resonance scans during the whole study period
