Affiliation: | 1. Division of Developmental Biology, Department of Anatomy, Kyoto Prefectural University of Medicine, Kawaramachi, Hirokoji, Kamigyo-ku, Kyoto, Japan;2. Genetic Engineering Team, RIKEN Center for Life Science Technologies, Chuou-ku, Kobe, Japan;3. Animal Resource Development Unit, RIKEN Center for Life Science Technologies, Chuou-ku, Kobe, Japan |