For instance , a study by suzanne bianchi at maryland university finds that mothers spent the same time , on average , on childcare in 2003 as in 1965 .
Dr. diana bianchi , executive director of the mother infant research institute at tufts medical center in boston and the lead author of the sex-determination report , said , " a very important aspect of the study is how this advances prenatal care . "
Dr. bianchi is conducting another study to " try to find out why people are buying these things and what are the consequences , " she said . " It 's very important to educate health care providers that pregnant women are buying these tests . "
