Sleep quality and functional disability in patients with rheumatoid arthritis.
J Clin Sleep Med. 2011 Feb 15; 7 (1): 49-55.
Do spouses know how much fatigue, pain, and physical limitation their partners with rheumatoid arthritis experience? Implications for social support.
Arthritis Care Res (Hoboken). 2011 Jan 1;63(1):120-7.