PILAR FONT UGALDEEDUARDO COLLANTES ESTÉVEZ2026-01-292026-01-29201510.1007/s00296-014-3107-y2-s2.0-84939889178https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/26361ImmunologyImmunology and AllergyRheumatologyPositive and negative affective states and disease activity in ankylosing spondylitisresearch article