Ueda K, Takura T, Fujikoshi S, Meyers J, Nagar SP, Enomoto H. Long-term pain management and health care resource use among an employed population in Japan with knee osteoarthritis combined with low back pain. Pain Med. 2021 Dec 11;22(12):3041-50. doi: 10.1093/pm/pnaa424
Boulanger L, Wu N, Chen SY, Nagar S, Fraser K, Bernauer MJ, Zhao Z, Zhao Y. Predictors of pain medication selection among patients diagnosed with fibromyalgia. Pain Pract. 2012 Apr;12(4):266-75.
Arnold L, Crofford L, Martin SA, Young J, Sharma U. The effect of anxiety and depression on improvements in pain in a randomized, controlled trial of pregabalin for treatment of fibromyalgia. Pain Med. 2007 Nov;8(8):633-8.
Barrett AM, Lucero MA, Le T, Robinson RL, Dworkin RH, Chappell AS. Epidemiology, public health burden, and treatment of diabetic peripheral neuropathic pain: a review. Pain Med. 2007 Sep 1;8(Suppl 2):S50-62.