APA (7th ed.) Citation

Shalowitz, D. I., & Ecker, J. L. (2011). Research in Pregnancy: Back to First Principles. American journal of bioethics, 11(5), 56-57. https://doi.org/10.1080/15265161.2011.560347

Chicago Style (17th ed.) Citation

Shalowitz, David I., and Jeffrey L. Ecker. "Research in Pregnancy: Back to First Principles." American Journal of Bioethics 11, no. 5 (2011): 56-57. https://doi.org/10.1080/15265161.2011.560347.

MLA (9th ed.) Citation

Shalowitz, David I., and Jeffrey L. Ecker. "Research in Pregnancy: Back to First Principles." American Journal of Bioethics, vol. 11, no. 5, 2011, pp. 56-57, https://doi.org/10.1080/15265161.2011.560347.

Warning: These citations may not always be 100% accurate.