RT Journal Article SR Electronic T1 Clinical gynaecological perspectives to improve validity in clinical research: comment on the article by Chiuve et al JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP jech-2021-218426 DO 10.1136/jech-2021-218426 A1 Oide, Shiho A1 Okubo, Ryo A1 Mitsuhashi, Toshiharu A1 Fukai, Kota A1 Masuda, Hiroki A1 Yamada, Yoshie A1 Yoshioka, Takashi YR 2022 UL http://jech.bmj.com/content/early/2022/03/03/jech-2021-218426.abstract AB