1. 1. Machado L, Vaclavinkova V, Gibb H. Evaluation of applicability of standard growth curves to healthy native Omani women by fetal biometry at selected gestational ages. Sultan Qaboos Univ Med J [SQUMJ] 2000;2(2):97–104. https://journals.squ.edu.om/index.php/squmj/article/view/1203.
2. 2. Shehzad K, Ali M, Zaidi S. Fetal biometry. Pak J Med Sci 2006;22(4):503. https://pjms.com.pk/issues/octdec06/pdf/fetal_biometry.pdf.
3. 3. Butt K, Lim K, Bly S, et al. Determination of gestational age by ultra-sound. J Obstet Gynaecol Can 2014;36(2):171–181. DOI: 10.1016/S1701-2163(15)30664-2.
4. 4. Konje J, Abrams K, Bell S, et al. Determination of gestational age after the 24th week of gestation from fetal kidney length measurements. Ultrasound Obstet Gynecol 2002;19(6):592–597. DOI: 10.1046/j.1469-0705.2002.00704.x.
5. 5. Zaidi S, Shehzad K, et al. Sonographic foetal measurements in a cohort of population of Karachi, Pakistan. JPMA 2009;59(4):246–249. https://www.jpma.org.pk/PdfDownload/1676.pdf.