Ward MM, Marx AS, Barry NN. Psychological distress and changes in the activity of systemic lupus erythematosus. Rheumatology (Oxford) 2002;41:184–8.
VanDyke MM, Parker JC, Smarr KL, Hewett JE, Johnson GE, Slaughter JR, et al. Anxiety in rheumatoid arthritis. Arthritis Rheum 2004;51: 408–12
Kvaal K, Ulstein I, Nordhus IH, Engedal K. The Spielberger State-Trait Anxiety Inventory (STAI): the state scale in detecting mental disorders in geriatric patients. Int J Geriatr Psychiatry. 2005 Jul;20(7):629-34.
Le Gal M, Mainguy Y, Le Lay K, Nadjar A, Allain D, Galissié M. Linguistic validation of six patient-reported outcomes instruments into 12 languages for patients with fibromyalgia. Joint Bone Spine. 2010 Mar;77(2):165-70
http://www.ncbi.nlm.nih.gov/pubmed/20189864VanDyke MM, Parker JC, Smarr KL, Hewett JE, Johnson GE, Slaughter JR, et al. Anxiety in rheumatoid arthritis. Arthritis Rheum 2004;51: 408–12.
http://www.ncbi.nlm.nih.gov/pubmed/15188326Kwan A, Bingham K, Touma Z. Measures of Anxiety in Rheumatic Diseases. Arthritis Care Res (Hoboken). 2020 Oct;72 Suppl 10:630-644.
https://pubmed.ncbi.nlm.nih.gov/33091269/