The impact of folic acid supplementation in early to mid-pregnancy on the risk of hypertensive disorders of pregnancy: the Japan environment and children’s study

  1. Akira Oku
  2. Yoshihiro Saito
  3. Hiroyoshi Iwata
  4. Sachiko Itoh
  5. Ami Hosokawa
  6. Takeshi Yamaguchi
  7. Mariko Itoh
  8. Keitaro Makino
  9. Maki Tojo
  10. Hidemichi Watari
  11. Yoshiya Ito
  12. Yasuaki Saijo
  13. Reiko Kishi
  14. Japan Environment, Children’s Study (JECS) Group
  15. Michihiro Kamijima
  16. Shin Yamazaki
  17. Maki Fukami
  18. Reiko Kishi
  19. Chiharu Ota
  20. Koichi Hashimoto
  21. Kenichi Sakurai
  22. Shuichi Ito
  23. Ryoji Shinohara
  24. Hidekuni Inadera
  25. Takeo Nakayama
  26. Ryo Kawasaki
  27. Yasuhiro Takeshima
  28. Hideki Nagashima
  29. Narufumi Suganuma
  30. Mayumi Tsuji
  31. Kimitoshi Nakamura
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  1. Version published to 10.1186/s12884-026-08898-5
  2. Version published to 10.21203/rs.3.rs-8170068/v2 on Research Square
  3. Version published to 10.21203/rs.3.rs-8170068/v1 on Research Square