[1] Univ Toyama, Dept Obstet & Gynecol, Toyama, Japan
[2] Univ Toyama, Grad Sch Med & Pharmaceut Sci, Dept Epidemiol & Hlth Policy, Toyama, Japan
[3] Osaka Womens & Childrens Hospita, Dept Maternal Fetal Med, Osaka, Japan
[4] Osaka Med Coll, Dept Obstet & Gynecol, Osaka, Japan
[5] Juntendo Univ, Fac Med, Dept Obstet & Gynecol, Tokyo, Japan
[6] Kobe Univ, Grad Sch Med, Dept Internal Med, Div Rheumatol & Clin Immunol, Kobe, Hyogo, Japan
[7] Shimane Univ, Fac Med, Dept Rheumatol, Matsue, Shimane, Japan
[8] Hyogo Coll Med, Dept Internal Med, Div Rheumatol, Nishinomiya, Hyogo, Japan
[9] Natl Hosp Org Shimoshizu Natl Hosp, Dept Rheumatol, Yotuskaido City, Japan
[10] Tokyo Med & Dent Univ, Dept Gastroenterol & Hepatol, Tokyo, Japan
[11] Toho Univ, Sakura Med Ctr, Inflammatory Bowel Dis Ctr, Chiba, Japan
[12] Tokyo Med & Dent Univ, Hosp Med, Clin Res Ctr, Tokyo, Japan
[13] Natl Ctr Child Hlth & Dev, Ctr Maternal Fetal Neonatal & Reprod Med, Tokyo, Japan
[14] Hokkaido Univ, Grad Sch Med, Dept Rheumatol Endocrinol & Nephrol, Sapporo, Hokkaido, Japan
[15] Hokkaido Univ, Fac Med, Sapporo, Hokkaido, Japan
[16] Kagoshima Univ, Grad Sch Med & Dent Sci, Dept Pediat, Kagoshima, Japan
[17] Tokyo Womens Med Univ, Inst Rheumatol, Dept Pediat Rheumatol, Tokyo, Japan
[18] Univ Tokyo Hosp, Dept Pediat & Neonatal Intens Care, Tokyo, Japan
[19] Natl Hosp Org Sagamihara Natl Hosp, Dept Pharm, Sagamihara, Kanagawa, Japan