Affiliation: | 1. Experimental Laboratory of Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil;2. Graduate Program in Gastroenterology and Hepatology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil;3. Pediatric Hepatology Unit, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil |