Dear Experts,
In my study I have 2 groups i.e controls (n=23) and patients (n=30). And again in patients, I have 2 sub-groups i.e subgroup1 (n=15) and subgroup2(n=15).
I have spinal cord area (SCA) at 4 different spinal cord levels (C1, C2, C3, C4) from these groups.
I would like to investigate...