Zuhaira, U. A., E. P. Pamungkasari, and V. Widyaningsih. “Meta-Analysis the Effect of Oral Combination Contraceptive on Hypertension and Stroke”. Journal of Maternal and Child Health, vol. 7, no. 5, Sept. 2022, pp. 520-31, doi:10.26911/thejmch.2022.07.05.03.