1. Department of Lipidomics, Graduate School of MedicineThe University of Tokyo, Hongo 7‐3‐1 Bunkyo‐ku Tokyo 113‐8654 Japan
2. Department of Clinical Laboratory Medicine, Graduate School of MedicineThe University of Tokyo, Hongo 7‐3‐1 Bunkyo‐ku Tokyo 113‐8654 Japan
3. Research Institute National Center for Global Health and Medicine, Toyama 1‐21‐1 Shinjuku‐ku Tokyo 162‐8655 Japan