@misc{indiciae9afac341296f, title = {Muscle changes in ankylosing spondylitis.}, author = {G O Hopkins and J McDougall and K R Mills and D A Isenberg and A Ebringer}, year = {1983}, doi = {10.1093/rheumatology/22.3.151}, url = {https://pubmed.ncbi.nlm.nih.gov/6871582/}, note = {Source identifier: 6871582} }