Five-year changes in ovarian function restoration in premenopausal patients with breast cancer taking tamoxifen after chemotherapy: An ASTRRA study report

Hee Jeong Kim, Woo Chul Noh, Seok Jin Nam, Byeong‐Woo Park, Eun S. Lee, Seock Ah Im, Yong Sik Jung, Jung Han Yoon, Sung Soo Kang, Kyong Hwa Park, Soo-Jung Lee, Joon Jeong, Min Hyung Lee, Se H. Cho, Sung Young Kim, Hyun‐Ah Kim, Sehwan Han, Wonshik Han, Min Hee Hur, Seon‐Ok Kim, Sei Hyun Ahn