Perinatal characteristics of 2000, 2005 and 2010 cohorts.
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# Persistence difference between 2005 and 2010,† Persistence difference between 2000 and 2010,■ Persistence difference between 2000 and 2005SD: Standard deviation, PDA: patent ductus arteriosusPerinatal characteristics of 2000, 2005 and 2010 cohorts.
创建时间：
2015-12-03
