In the largest study of its kind, researchers find that the risk of severe breathing problems rises significantly in babies born prematurely, even those born in the so-called late preterm period.

在大量的相关研究中，研究人员发现，早产儿呼吸系统出问题的风险明显要高于(足产儿)。即使在所谓的晚期早产儿中，亦是如此。