https://www.worldwidejournals.com/global-journal-for-research-analysis-GJRA/certificate.php?rut=new-ballard-score-versus-first-trimester-ultrasound-for-gestational-age-a-prospective-observational-hospital-based-comparative-study_January_2022_1749279064_0411164.pdf
GJRA - Global Journal For Research Analysis - New Ballard Score Versus First Trimester Ultrasound...
global journalfor researchballard scorefirst trimesteranalysis