Sierra R - Search Results

1

In vivo nitrosoproline formation and other risk factors in Costa Rican children from high- and low-risk areas for gastric cancer.

Sierra R, Chinnock A, Ohshima H, Pignatelli B, Malaveille C, Gamboa C, Teuchmann S, Muñoz N, Bartsch H. Sierra R, et al. Cancer Epidemiol Biomarkers Prev. 1993 Nov-Dec;2(6):563-8. Cancer Epidemiol Biomarkers Prev. 1993. PMID: 8268774

2

Antibodies to Helicobacter pylori and pepsinogen levels in children from Costa Rica: comparison of two areas with different risks for stomach cancer.

Sierra R, Muñoz N, Peña AS, Biemond I, van Duijn W, Lamers CB, Teuchmann S, Hernandez S, Correa P. Sierra R, et al. Cancer Epidemiol Biomarkers Prev. 1992 Sep-Oct;1(6):449-54. Cancer Epidemiol Biomarkers Prev. 1992. PMID: 1302556

3

Exposure to N-nitrosamines and other risk factors for gastric cancer in Costa Rican children.

Sierra R, Ohshima H, Muñoz N, Teuchmann S, Peña AS, Malaveille C, Pignatelli B, Chinnock A, el Ghissassi F, Chen C, et al. Sierra R, et al. IARC Sci Publ. 1991;(105):162-7. IARC Sci Publ. 1991. PMID: 1855842

4

Cancer in Costa Rica.

Sierra R, Parkin DM, Leiva GM. Sierra R, et al. Cancer Res. 1989 Feb 1;49(3):717-24. Cancer Res. 1989. PMID: 2910491

5

Determinants of the geographic variation of invasive cervical cancer in Costa Rica.

Herrero R, Brinton LA, Hartge P, Reeves WC, Breñes MM, Urcuyo R, Pacheco M, Fuster F, Sierra R. Herrero R, et al. Among authors: sierra r. Bull Pan Am Health Organ. 1993;27(1):15-25. Bull Pan Am Health Organ. 1993. PMID: 8490673

6

X-ray screening seems to reduce gastric cancer mortality by half in a community-controlled trial in Costa Rica.

Rosero-Bixby L, Sierra R. Rosero-Bixby L, et al. Among authors: sierra r. Br J Cancer. 2007 Oct 8;97(7):837-43. doi: 10.1038/sj.bjc.6603729. Epub 2007 Oct 2. Br J Cancer. 2007. PMID: 17912238 Free PMC article. Clinical Trial.

7

[Association of the p53 codon 72 polymorphism to gastric cancer risk in a hight risk population of Costa Rica].

Alpízar-Alpízar W, Sierra R, Cuenca P, Une C, Mena F, Pérez-Pérez GI. Alpízar-Alpízar W, et al. Among authors: sierra r. Rev Biol Trop. 2005 Sep-Dec;53(3-4):317-24. Rev Biol Trop. 2005. PMID: 17354442 Spanish.

8

Composition and gene expression of the cag pathogenicity island in Helicobacter pylori strains isolated from gastric carcinoma and gastritis patients in Costa Rica.

Occhialini A, Marais A, Urdaci M, Sierra R, Muñoz N, Covacci A, Mégraud F. Occhialini A, et al. Among authors: sierra r. Infect Immun. 2001 Mar;69(3):1902-8. doi: 10.1128/IAI.69.3.1902-1908.2001. Infect Immun. 2001. PMID: 11179371 Free PMC article.

9

Association of interleukin-1B and interleukin-1RN polymorphisms with gastric cancer in a high-risk population of Costa Rica.

Alpízar-Alpízar W, Pérez-Pérez GI, Une C, Cuenca P, Sierra R. Alpízar-Alpízar W, et al. Among authors: sierra r. Clin Exp Med. 2005 Dec;5(4):169-76. doi: 10.1007/s10238-005-0082-3. Clin Exp Med. 2005. PMID: 16362796

10

Helicobacter pylori in a Costa Rican dyspeptic patient population.

Morera-Brenes B, Sierra R, Barrantes R, Jonasson J, Nord CE. Morera-Brenes B, et al. Among authors: sierra r. Eur J Clin Microbiol Infect Dis. 1994 Mar;13(3):253-7. doi: 10.1007/BF01974546. Eur J Clin Microbiol Infect Dis. 1994. PMID: 8050440

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