Wallace, E. M., & Baker, L. S. (1999). Effect of antenatal betamethasone administration on placental vascular resistance. Lancet, 353(9162), 1404. https://doi.org/10.1016/S0140-6736(98)08229-4
Chicago Style (17th ed.) CitationWallace, Euan M., and Lesleigh S. Baker. "Effect of Antenatal Betamethasone Administration on Placental Vascular Resistance." Lancet 353, no. 9162 (1999): 1404. https://doi.org/10.1016/S0140-6736(98)08229-4.
MLA (9th ed.) CitationWallace, Euan M., and Lesleigh S. Baker. "Effect of Antenatal Betamethasone Administration on Placental Vascular Resistance." Lancet, vol. 353, no. 9162, 1999, p. 1404, https://doi.org/10.1016/S0140-6736(98)08229-4.
Warning: These citations may not always be 100% accurate.