1. Albrecht, S. L., Clarke, L. L., Miller, M. K., & Farmer, F. L. (1996). Predictors of differential birth outcomes among hispanic groups in the United States: The role of maternal risk characteristics and medical care. Social Science Quarterly, 77, 407–433.
2. Anderson, R. N., Minino, A. M., Hoyert, D. L., & Rosenberg, H. M. (2001). Comparability of cause of death between ICD-9 and ICD-10: Preliminary estimates. National Vital Statistics Reports, 49(2). Hyattsville, MD: National Center for Health Statistics.
3. Black, L., David, R. J., Brouillette, R. T., & Hunt, C. E. (1986). Effects of birth weight and ethnicity on incidence of sudden infant death syndrome. The Journal of Pediatrics, 108, 209–214. doi: 10.1016/S0022-3476(86)80984-2 .
4. Blondel, B., Kogan, M. D., Alexander, G. R., Dattani, N., Kramer, M. S., Macfarlane, A., et al. (2002). The impact of the increasing number of multiple births on the rate of preterm birth and low birthweight: An international study. American Journal of Public Health, 92, 1323–1330. doi: 10.2105/AJPH.92.8.1323 .
5. Brillinger, D. R. (1986). The natural variability of vital rates and associated statistics. Biometrics, 42, 693–734. doi: 10.2307/2530689 .