1. Department of Bacteriology1 and
2. Department of Anatomy, Kanazawa Medical University, Uchinada, Ishikawa 920-02,2 and
3. Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe 658,3 Japan
4. Clinical Laboratory,4 Hyogo College of Medicine, Nishinomiya, Hyogo 663,