1. Department of Developmental Medicine, Research Institute, Osaka Medical Center for Maternal and Child Health, Osaka, Japan
2. Department of Infection Metagenomics, Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
3. Center for Medical Research and Education, Graduate School of Medicine, Osaka University, Osaka, Japan
4. Pathology and Laboratory Medicine, Osaka Medical Center for Maternal and Child Health, Osaka, Japan
5. Fujita Clinic, Osaka, Japan