1. Premature birth;Iams,1990
2. Preventing low birth weight;Committee to Study the Prevention of Low Birth Weight,1985
3. Premature mortality in the United States: public health issues in the use of years of potential life lost;Centers for Disease Control and Prevention;MMWR Morb Mortal Wkly Rep,1986
4. The cost of care of the less than 1000 gram infant;Hernandez;Clin Perinatol,1986
5. Infection and preterm labor;Romero;Clin Obstet Gynecol,1988