Relatively high infant mortality in US is due to number of preterm births, report says.
Tanne
Janice Hopkins
JH
D005260:Female; D006801:Humans; D007223:Infant; D007226:Infant Mortality / Q000639:trends; D011247:Pregnancy; D047928:Premature Birth / Q000401:mortality*; D014481:United States / Q000453:epidemiology