Assessing the methods of a recently published study: four placebo groups? Reply

作者:Xu J*; Midwinter Morten H; Cusick C; MacKenzie I Z
来源:BJOG: An International Journal of Obstetrics and Gynaecology , 2011, 118(12): 1542-1543.
DOI:10.1111/j.1471-0528.2011.03087.x
  • 出版日期2011-11

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