Fig. 2From: Cord cross-sectional area at foramen magnum as a correlate of disability in amyotrophic lateral sclerosisa Graph depicting significant difference in the foramen magnum cord area (FMCA) (mm2) between the two groups with 95% CIs. b Plot showing the correlation between FMCA (mm2) and Functional Rating Scale–Revised (ALSFRS-R) values of patients with amyotrophic lateral sclerosis (ALS)Back to article page