Svebak, S., & Halvari, H. (2018). Sickness Absence due to Chronic Musculoskeletal Pain: The Exploration of a Predictive Psychological Model Including Negative Moods, Subjective Health and Work Efficacy in an Adult County Population (The HUNT Study). Europe’s Journal of Psychology, 14(2), 373-385. https://doi.org/10.5964/ejop.v14i2.1470