ES, D., B, M., DJ, F., & D, J. (1999). Prediction of survival for preterm births by weight and gestational age: Restrospective population based study. BMJ: British Medical Journal (International Edition), 319(7217), 1093. https://doi.org/10.1136/bmj.319.7217.1093
Chicago Style (17th ed.) CitationES, Draper, Manktelow B, Field DJ, and James D. "Prediction of Survival for Preterm Births by Weight and Gestational Age: Restrospective Population Based Study." BMJ: British Medical Journal (International Edition) 319, no. 7217 (1999): 1093. https://doi.org/10.1136/bmj.319.7217.1093.
MLA (9th ed.) CitationES, Draper, et al. "Prediction of Survival for Preterm Births by Weight and Gestational Age: Restrospective Population Based Study." BMJ: British Medical Journal (International Edition), vol. 319, no. 7217, 1999, p. 1093, https://doi.org/10.1136/bmj.319.7217.1093.