An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Nervi F, Covarrubias C, Bravo P, Velasco N, Ulloa N, Cruz F, Fava M, Severín C, Del Pozo R, Antezana C, et al.Nervi F, et al. Among authors: ulloa n.Gastroenterology. 1989 Mar;96(3):825-30.Gastroenterology. 1989.PMID: 2783676
Ulloa N, Bustos P, Castro G, Fruchart J, Vera M, Fruchart JC, Calvo C.Ulloa N, et al.Hybridoma. 1999 Dec;18(6):513-20. doi: 10.1089/hyb.1999.18.513.Hybridoma. 1999.PMID: 10626680
Calvo C, Olmos A, Ulloa N, Bustos A, Toledo L, Durán D, Naveas R.Calvo C, et al. Among authors: ulloa n.Rev Med Chil. 2000 Jan;128(1):9-16.Rev Med Chil. 2000.PMID: 10883517Spanish.