Uma, V., A. V. Suresh Babu, and Hanumanth N. “Thyroid Hormones Reference Ranges During Each Trimester of Normal Pregnancy Subjects in Andhra Pradesh, South India”. International Journal of Research in Medical Sciences 7, no. 12 (November 27, 2019): 4499–4504. Accessed December 5, 2025. https://www.msjonline.org/index.php/ijrms/article/view/7253.