1. Asakawa T, Xia Y (2012a) Acupuncture treatment for Parkinson’s disease. In: Xia Y, Ding GH, Wu GC (eds) Current research in acupuncture. Springer, New York, pp 215–253
2. Asakawa T, Xia Y (2012b) Can acupuncture treat Alzheimer’s disease and other neurodegenerative disorders? In: Xia Y, Ding GH, Wu GC (eds) Current research in acupuncture. Springer, New York, pp 255–301
3. Asakawa T, Xia Y (2012c) Future research in acupuncture: better design and analysis for novel and valid findings. In: Xia Y, Ding GH, Wu GC (eds) Current research in acupuncture. Springer, New York, pp 687–725
4. Bodnar RJ (2014) Endogenous opiates and behavior: 2013. Peptides 62:67–136
5. Boutin H, Dauphin F, MacKenzie ET, Jauzac P (1999) Differential time-course decreases in nonselective, μ-, δ-, and κ-opioid receptors after focal cerebral ischemia in mice. Stroke 30(6):1271–1278