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Objective To evaluate the association between induced abortion (IA) and breast cancer risk among Chinese females. Methods We searched three English databases (PubMed, ScienceDirect, and Wiley) and three Chinese databases (CNKI, WanFang, and VIP) for studies up to December 2012, supplemented by manual searches. Two reviewers independently conducted the literature searching, study selection, and data...
During the past three decades, the social/natural environment and lifestyle of people in China have undergone a marked transformation to westernization. However, age-standardized cancer rates have not been determined to any great extent in China. In this study, we tracked the cancer incidence between 1981 and 2000 in Tianjin, to identify the changes in incidence associated with social and economic...
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