APA (7e ed.) Bronvermelding

Herrera, C. L., Bowman, M. E., McIntire, D. D., Nelson, D. B., & Smith, R. (2021). Revisiting the placental clock: Early corticotrophin-releasing hormone rise in recurrent preterm birth. Public Library of Science (PLoS).

Chicago (17e ed.) Bronvermelding

Herrera, Christina L., Maria E. Bowman, Donald D. McIntire, David B. Nelson, en Roger Smith. Revisiting the Placental Clock: Early Corticotrophin-releasing Hormone Rise in Recurrent Preterm Birth. Public Library of Science (PLoS), 2021.

MLA (9e ed.) Bronvermelding

Herrera, Christina L., et al. Revisiting the Placental Clock: Early Corticotrophin-releasing Hormone Rise in Recurrent Preterm Birth. Public Library of Science (PLoS), 2021.