New research published in BJOG: An International Journal of Obstetrics and Gynaecology shows that certain types of assisted reproductive technology (ART) used to treat infertility lead to more male than female babies being born. Researchers in Australia studied all live births following fertility treatment in clinics in Australia and New Zealand between 2002 and 2006. 13,368 babies were born to 13,165 women who underwent single embryo transfer (SET) in that period... 
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