1. Department of Ophthalmology, University, Hasama‐machi, Oita, Japan.
2. Department of Clinical Pharmacology and Therapeutics, University, Hasama‐machi, Oita, Japan.
3. Department of Obstetrics and Gynecology, University, Hasama‐machi, Oita, Japan.
4. Department of Laboratory Medicine, Oita Medical University, Hasama‐machi, Oita, Japan.