海量图书期刊资源,随时随地畅享阅读乐趣
Cytogenetic and epidemiological findings in Down syndrome: England and Wales 1989–2009Joan K. Morris; Eva Alberman; David Mutton; Patricia Jacobs · 2012
Maternal age-specific fetal loss rates in Down syndrome pregnanciesGeorge M. Savva; Joan K. Morris; David E. Mutton; Eva Alberman · 2006
Rates of Down syndrome at the upper extreme of maternal age: considerations and recommendations in analysisJoan K. Morris; David Mutton; Eva Alberman · 2006