RT Journal Article SR Electronic T1 Ankylosing spondylitis: a late re-evaluation of 92 cases JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1 OP 9 VO 95 IS 1 A1 Kinsella, T. D. A1 MacDonald, R. F. A1 Johnson, L. G. YR 1966 UL http://www.cmaj.ca/content/95/1/1.abstract