留言内容:I enjoy travelling a href=" http://www.lextox.co.uk/albuterol-uk.pdf"ventolin inhaler price uk/a In the latest time period (2006-2010), incidence rates increased for estrogen receptor-positive (ER ) breast cancers in the youngest white women, Hispanic women in their 60s, and all but the oldest African American women. In contrast, estrogen receptor-negative (ER-) breast cancers declined among most age and racial/ethnic groups. In every age group, white women have the highest rates of ER breast cancer and African American women have the highest rates of ER- breast cancer. These differences may reflect racial variations in the prevalence of risk factors that differ by ER status. For example, reproductive history and obesity appear to be more strongly associated with ER breast cancer, whereas lower socioeconomic status is associated with an increased risk of ER- breast cancer.