Bidirectional associations between mental health conditions and cognitive impairment in patients with pain conditions of the back, neck, and spine: A population-based study - Mohammad Alipour-Vaezi; Jyoti Savla; Margaret R. Rukstalis; Daniel B. Rukstalis; Kwok-Leung Tsui; Donald B. Penzien; Robert S. McNamara; Huaiyang Zhong (PLoS ONE, 2026)