OBORO, Victor Oyenkekaibe; BELLO, Temitope Olugbenga; OYENIRAN, Ayodeji Olaolu. First trimester sonographic dating formula for the nigerian obstetric population. West African Journal of Radiology, [S. l.], v. 19, n. 1, p. 1–4, 2025. DOI: 10.82235/wajr.vol19no1.225. Disponível em: https://wajr.org/index.php/home/article/view/225. Acesso em: 13 sep. 2025.