The study led by researchers Eduard Gratacós and John Balasch, teachers of Obstetrics and Gynecology, Faculty of Medicine at University of Barcelona; determined that fetuses conceived through assisted reproductive experience changes in the heart and arteries that start before birth and persist after birth.

You can find more information at: http://www.ub.edu/web/ub/ca/menu_eines/noticies/2013/09/029.html