1. Life Science Research LaboratoriesLion CorporationKanagawaJapan
2. Department of PharmacologyGraduate School of Dental Science, Kyushu UniversityFukuokaJapan
3. Taiho Pharmaceutical CorporationTokushima Research PlanningTokushimaJapan
4. Proteolysis Research LaboratoryGraduate School of Pharmaceutical Sciences, Kyushu UniversityFukuokaJapan