Impact of mammography and breast ultrasound on health outcome among young breast cancer survivors: A retrospective cohort study

Yun-Yi Chen1, Mei-Shu Lai, MD, PhD2 and Kuo-Piao Chung, PhD3
(1)National Taiwan University, Taipei, Taiwan, (2)National Taiwan University, Taipei City, Taiwan, (3)College of Public Health, National Taiwan University, Taiwan, Taipei City, Taiwan