RT Journal Article SR Electronic T1 Genetic Markers in a Medieval Case of Ankylosing Spondylitis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 679 OP 681 DO 10.3899/jrheum.151170 VO 43 IS 3 A1 IMANOL MARTÍN LAZA A1 MONTSERRAT HERVELLA A1 CONCEPCIÓN DE-LA-RÚA YR 2016 UL http://www.jrheum.org/content/43/3/679.abstract AB