Sultana, J. et al. 2022. Long Term Evaluation of Post-Partum Intrauterine Device (PPIUD) In Terms of Safety and Efficacy. Bangladesh Journal of Obstetrics & Gynaecology. 35, 2 (Mar. 2022), 81–89. DOI:https://doi.org/10.3329/bjog.v35i2.58789.