MURAT PALABIYIKOĞLU et al. Serum retinol and beta-carotene levels in liver cirrhosis. Turkish Journal of Gastroenterology, [S. l.], v. 6, n. 3, p. 337–342, 2020. Disponível em: https://tjg.avesjournals.com/index.php/tjg/article/view/978. Acesso em: 16 jul. 2025.