Bakhtawar , K. ., John, A. . ., Ali , A. ., & Mubbarka , M. . (2022). Ultrasound Diagnosis and Risk Factors of 1st Trimester Complications in Pregnancy: Ultrasound Diagnosis and Risk Factors of 1st Trimester. Pakistan BioMedical Journal, 5(4), 41–45. https://doi.org/10.54393/pbmj.v5i4.293