1. Department of Pediatrics, Graduate School of Medicine, Chiba University, Chiba-shi, Japan
2. Department of Infectious Diseases, Medical Mycology Research Center, Chiba University, Chiba-shi, Japan
3. Department of Pediatrics, Seikeikai Chiba Medical Center, Chiba-shi, Japan
4. Division of Infectious Diseases, Chiba Children’s Hospital, Chiba-shi, Japan
5. Center for Preventive Medical Sciences, Chiba University, Chiba-shi, Japan