Its pediatric research program is among the largest in the country, ranking third in National Institutes of Health funding.
其儿科研究项目在全美是最大的，在国家卫生研究基金中排名第三。
2
Answer: : According to the requirements, the 72-hour transit visa exemption measure is for a foreign national passing through Beijing or Shanghai for a thirdcountry or region.
答：根据规定，72小时过境免签政策是针对在北京或上海过境前往第三国或地区的规定国家外国人。
3
Today, about a third of U. S. births are done by caesarean section, up from 21% in 1998, one of the highest of any developed country, the National Center for Health Statistics reported in March.
据美国国家卫生统计中心（National Center for Health Statistics）3月份公布的数据，目前，美国的剖腹产率约为三分之一，较1998年的21%有所上升，成为发达国家中剖腹产率最高的国家之一。