1. Addison K, et al. Heart rate characteristics and neurodevelopmental outcome in very low birth weight infants. J Perinatol. 2009;29(11):750–6.
2. Allen MC, Donohue PK, Dusman AE. The limit of viability–neonatal outcome of infants born at 22 to 25 weeks’ gestation. N Engl J Med. 1993;329(22):1597–601.
3. Ananth CV. Menstrual versus clinical estimate of gestational age dating in the United States: temporal trends and variability in indices of perinatal outcomes. Paediatr Perinat Epidemiol. 2007;21 Suppl 2:22–30.
4. Baines MA. Excessive infant-mortality; how can it be stayed? A paper contributed to the National Social Science Association, London meeting. To which is added a short paper, reprinted from the Lancet [1861] on Infant-alimentation; or, Artificial feeding, as a substitute for breast-milk, considered in its physical and social aspects. London: Churchill; 1862. 20 p.
5. Baker JP. The incubator controversy: pediatricians and the origins of premature infant technology in the United States, 1890 to 1910. Pediatrics. 1991;87(5):654–62.