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Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Shanghai Jiaotong University (Medical Science) is the property of Journal of Shanghai Jiaotong University (Medical Science) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The increasing infertility in recent decades attributes to the side effects of multiple factors, including pollution,aberrant hormones. Fortunately, the vitro fertilization-embryo transfer technology is available to overcome this issue. However, it is not clear whether the high dose of follicle stimulating hormone used to ovulation, alteration of hormonal level, even the repeated damage and subsequent repair cycles, could increase the risk of ovarian tumor development. Upon this, increasing evidence has gone on some relevant epidemiologic studies, we also have carried out some mechanical researches regarding how follicle stimulating hormone affects ovarian cancers. But, the designs of the established studies, to some degree, have limitations on the short-term follow-up and the lower mean age of the treated women and so on. In summary, there is still no significant evidence about the association between fertility drug use and ovarian tumor risk. Now, we summarize their contributions as follows. [ABSTRACT FROM AUTHOR]