Abdel-Hafez, Atef A.; Elsherief, Hosny A. H.; Jo, Michiko; Kurokawa, Masahiko; Shiraki, Kimiyasu; Kawahata, Takuya; Otake, Toru; Nakamura, Norio; Hattori, Masao Arzneimittel-Forschung/Drug Research, 2002 , vol. 52, # 11 p. 833 - 839