Ohta, H., Oka, H., Usui, C., Ohkura, M., Suzuki, M., & Nishioka, K. (2012). A randomized, double-blind, multicenter, placebo-controlled phase III trial to evaluate the efficacy and safety of pregabalin in Japanese patients with fibromyalgia. BioMed Central.

Ohta, Hiroyoshi, Hiroshi Oka, Chie Usui, Masayuki Ohkura, Makoto Suzuki, a Kusuki Nishioka. A Randomized, Double-blind, Multicenter, Placebo-controlled Phase III Trial to Evaluate the Efficacy and Safety of Pregabalin in Japanese Patients With Fibromyalgia. BioMed Central, 2012.

Ohta, Hiroyoshi, et al. A Randomized, Double-blind, Multicenter, Placebo-controlled Phase III Trial to Evaluate the Efficacy and Safety of Pregabalin in Japanese Patients With Fibromyalgia. BioMed Central, 2012.