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- [33] Trends in preterm-related infant mortality by race and ethnicity, United States, 1999-2004 [J]. INTERNATIONAL JOURNAL OF HEALTH SERVICES, 2007, 37 (04): : 635 - 641
- [36] Trends in Medication Use among Individuals with Severe Headaches or Migraines in the United States: 1999-2004 [J]. HEADACHE, 2010, 50 : S30 - S30