1. R&D Division, Analytical Technology Unit, API Analytical Development Department, Towa Pharmaceutical Co., Ltd., 7-1-3 Doi-cho, Amagasaki, Hyogo 660-0083, Japan
2. R&D Division, Analytical Technology Unit, API Analytical Development Department, Towa Pharmaceutical Co., Ltd., 32-8 Kuwazaishinmachi, Kadoma, Osaka 571-0043, Japan
3. R&D Division, Analytical Technology Unit, API Analytical Development Department, Towa Pharmaceutical Co., Ltd., 26-7 Ichiban-cho, Kadoma, Osaka 571-0033, Japan
4. Towa Pharmaceutical Co., Ltd., 2-11 Shinbashi-cho, Kadoma, Osaka 571-8580, Japan