HIV testing during pregnancy in the United states.
美国的孕间HIV检测。
"Our findings suggest that television may play a significant role in the high rates of teenage pregnancy in the United States," she said.
她说：“我们的调查结果表明，电视可能是造成美国青少年怀孕率居高不下的一个很重要的因素。”
About 13 percent of all live births in the United States are preterm, meaning the baby is born before the 37th week of pregnancy, according to the Centers for Disease Control and Prevention.
在美国约有13%的存活产婴儿是早产，这意味着在婴儿是怀孕37周之前出生的，根据美国疾病控制和预防中心的一项调查显示。
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