Handbook of hormones : comparative endocrinology for basic and clinical research / edited by Yoshio Takei, Atmosphere and Ocean Research Institute, The University of Tokyo, Chiba, Japan, Hironori Ando, Sado Marine Biological Station, Faculty of Science, Niigata University, Niigata, Japan, Kazuyoshi Tsutsui, Department of Biology and Center for Medical Life Science, Waseda University, Tokyo, Japan.