Diagnosis delay in patients with ankylosing spondylitis: possible reasons and proposals for new diagnostic criteria.
Clin Rheumatol. 2008 Apr;27(4):457-62. doi: 10.1007/s10067-007-0727-6. Epub 2007 Sep 26.
Clin Rheumatol. 2008.
PMID: 17899306