Intarangsri, J., and S. Puttasiri. “Bleeding Patterns after use of Single-rod Etonogestrel Implant in Postpartum Adolescents”. Thai Journal of Obstetrics and Gynaecology, vol. 29, no. 6, Nov. 2021, pp. 322-30, doi:10.14456/tjog.2021.38.