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://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/1027. Acesso em: 8 jul. 2025.