APA (7th ed.) Citation

Hacking, D., Watkins, A., Fraser, S., Wolfe, R., & Nolan, T. (2001). Respiratory distress syndrome and birth order in premature twins. Archives of Disease in Childhood -- Fetal & Neonatal Edition, 84(2), F117. https://doi.org/10.1136/fn.84.2.F117

Chicago Style (17th ed.) Citation

Hacking, D., A. Watkins, S. Fraser, R. Wolfe, and T. Nolan. "Respiratory Distress Syndrome and Birth Order in Premature Twins." Archives of Disease in Childhood -- Fetal & Neonatal Edition 84, no. 2 (2001): F117. https://doi.org/10.1136/fn.84.2.F117.

MLA (9th ed.) Citation

Hacking, D., et al. "Respiratory Distress Syndrome and Birth Order in Premature Twins." Archives of Disease in Childhood -- Fetal & Neonatal Edition, vol. 84, no. 2, 2001, p. F117, https://doi.org/10.1136/fn.84.2.F117.