Secular trends in age at menarche and time to establish regular menstrual cycling in Japanese women born between 1930 and 1985

• मुख्य लेखकों: Hosokawa Michie (लेखक), Imazeki Setsuko (लेखक), Mizunuma Hideki (लेखक), Kubota Toshiro (लेखक), Hayashi Kunihiko (लेखक)
• स्वरूप: पुस्तक
• प्रकाशित: BMC, 2012-07-01T00:00:00Z.
• विषय: article
• ऑनलाइन पहुंच: Connect to this object online.

<p>Abstract</p> <p>Background</p> <p>Early life-stage exposure to estrogen increases the risk of breast cancer. The objective of this study was to investigate the age at menarche and time to onset of regular menstrual cycles for Japanese women born between 1930 and 1985...