Ankylosing spondylitis (AS) (ank-ee-lo-zing spon-dee-li-tus) is a type of arthritis that mainly affects the back, by causing inflammation in the...
Ankylosing spondylitis (AS) (ank-ee-lo-zing spon-dee-li-tus) is a type of arthritis that mainly affects the back, by causing inflammation in the...
