1. Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University; Sendai Japan
2. Department of Surgery; Tohoku University Graduate School of Medicine; Sendai Japan
3. Department of Molecular Pathology; Tohoku University Graduate School of Medicine; Sendai Japan
4. Division of Research and Development; Meiji Co., Ltd; Odawara Japan
5. Food Science and Technology Institute, Morinaga Milk Industry Co., Ltd; Zama Japan