On the reversibility of articular degenerative processes.
D004194:Disease; D006801:Humans; D010024:Osteoporosis; D013122:Spinal Diseases; D013131:Spine; D013166:Spondylitis; D013167:Spondylitis, Ankylosing
OSTEOPOROSIS; SPINE/diseases; SPONDYLITIS, ANKYLOSING