Pain, depression, and fatigue: loneliness as a longitudinal risk factor
Health Psychology (2014) - Comment
pubmed: 23957903  doi: 10.1037/a0034012  issn: 1930-7810  issn: 0278-6133 

Lisa M. Jaremka, Rebecca R. Andridge, Christopher P. Fagundes, Catherine M. Alfano, Stephen P. Povoski, Adele M. Lipari, Doreen M. Agnese, Mark W. Arnold, William B. Farrar, Lisa D. Yee, William E. Carson, Tanios Bekaii-Saab, Edward W. Martin, Carl R. Schmidt, Janice K. Kiecolt-Glaser