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.
Total respiratory resistance (Rrs) [top] and Reactance (Xrs) [bottom] trends as a function of oscillatory frequency (5–35 Hz) in MSD subgroup. Discontinued line (- - -) represent normal ranges adjusted for age and height. Data expressed as a mean ± SE; *p< 0.05 vs reference values of healthy subjects; ^p< 0.05 as a function of frequency. MSD: Metatropic and spondylocostal dysplasias.
