Beenish Nadeem, Naushaba Malik, Manal Niazi, Saira Ahmad, Mariam Hassan Bukhari, Arsalan Khalid. Establishing Normal Range of Fetal Pulmonary Artery and Fetal Aortic Diameter in 18-26 Weeks of Gestation in Pakistani Population. Pakistan Journal of Medical & Health Sciences 2022, 16, 482.