Cita APA

Stock, S. J., & Bauld, L. (2020). Maternal smoking and preterm birth: An unresolved health challenge. PLoS Med.

Chicago Style Citation

Stock, Sarah J., i Linda Bauld. "Maternal Smoking and Preterm Birth: An Unresolved Health Challenge." PLoS Med 2020.

Cita MLA

Stock, Sarah J., i Linda Bauld. "Maternal Smoking and Preterm Birth: An Unresolved Health Challenge." PLoS Med 2020.