PUIG-HERNÁNDEZ, Jaime F.; JIMÉNEZ-VÉLEZ, Braulio D. High Pressure Liquid Chormatography Determination of the Concentration and Integrity of L-Thyroxine in Free T4 Stock Solution. Puerto Rico Health Sciences Journal, [S. l.], v. 24, n. 2, 2005. Disponível em: https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/385. Acesso em: 19 dec. 2025.