APA (7th ed.) Citation

Ray, J., Davidson, A., Berger, H., Dayan, N., Park, A., Ray, J. G., & Park, A. L. (2020). Haemoglobin levels in early pregnancy and severe maternal morbidity: Population-based cohort study. BJOG: An International Journal of Obstetrics & Gynaecology, 127(9), 1154. https://doi.org/10.1111/1471-0528.16216

Chicago Style (17th ed.) Citation

Ray, JG, AJF Davidson, H. Berger, N. Dayan, AL Park, J G. Ray, and A L. Park. "Haemoglobin Levels in Early Pregnancy and Severe Maternal Morbidity: Population-based Cohort Study." BJOG: An International Journal of Obstetrics & Gynaecology 127, no. 9 (2020): 1154. https://doi.org/10.1111/1471-0528.16216.

MLA (9th ed.) Citation

Ray, JG, et al. "Haemoglobin Levels in Early Pregnancy and Severe Maternal Morbidity: Population-based Cohort Study." BJOG: An International Journal of Obstetrics & Gynaecology, vol. 127, no. 9, 2020, p. 1154, https://doi.org/10.1111/1471-0528.16216.