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Association of esophageal cytological abnormalities with vitamin and lipotrope deficiencies in populations at risk for esophageal cancer.
Jaskiewicz K, Marasas WF, Lazarus C, Beyers AD, Van Helden PD. Jaskiewicz K, et al. Among authors: van helden pd. Anticancer Res. 1988 Jul-Aug;8(4):711-5. Anticancer Res. 1988. PMID: 3178161
No evidence for point mutations in codons 12, 13, and 61 of the ras gene in a high-incidence area for esophageal and gastric cancers.
Victor T, Du Toit R, Jordaan AM, Bester AJ, van Helden PD. Victor T, et al. Among authors: van helden pd. Cancer Res. 1990 Aug 15;50(16):4911-4. Cancer Res. 1990. PMID: 2199031
Chronic atrophic gastritis, gastric pH, nitrites and micronutrient levels in a population at risk for gastric carcinoma.
Jaskiewicz K, Van Helden PD, Wiid IJ, Steenkamp HJ, Van Wyk MJ. Jaskiewicz K, et al. Among authors: van helden pd, van wyk mj. Anticancer Res. 1990 May-Jun;10(3):833-6. Anticancer Res. 1990. PMID: 2369096
Hypomethylation of DNA in pathological conditions of the human prostate.
Bedford MT, van Helden PD. Bedford MT, et al. Among authors: van helden pd. Cancer Res. 1987 Oct 15;47(20):5274-6. Cancer Res. 1987. PMID: 2443238
Cross-contamination of human esophageal squamous carcinoma cell lines detected by DNA fingerprint analysis.
van Helden PD, Wiid IJ, Albrecht CF, Theron E, Thornley AL, Hoal-van Helden EG. van Helden PD, et al. Cancer Res. 1988 Oct 15;48(20):5660-2. Cancer Res. 1988. PMID: 3167823
Esophageal cancer: vitamin and lipotrope deficiencies in an at-risk South African population.
van Helden PD, Beyers AD, Bester AJ, Jaskiewicz K. van Helden PD, et al. Nutr Cancer. 1987;10(4):247-55. doi: 10.1080/01635588709513962. Nutr Cancer. 1987. PMID: 3432094
p53 and p16/CDKN2 gene mutations in esophageal tumors from a high-incidence area in South Africa.
Gamieldien W, Victor TC, Mugwanya D, Stepien A, Gelderblom WC, Marasas WF, Geiger DH, van Helden PD. Gamieldien W, et al. Among authors: van helden pd. Int J Cancer. 1998 Nov 23;78(5):544-9. doi: 10.1002/(sici)1097-0215(19981123)78:5<544::aid-ijc3>;2-t. Int J Cancer. 1998. PMID: 9808520
Mannose-binding protein B allele confers protection against tuberculous meningitis.
Hoal-Van Helden EG, Epstein J, Victor TC, Hon D, Lewis LA, Beyers N, Zurakowski D, Ezekowitz AB, Van Helden PD. Hoal-Van Helden EG, et al. Among authors: van helden pd. Pediatr Res. 1999 Apr;45(4 Pt 1):459-64. doi: 10.1203/00006450-199904010-00002. Pediatr Res. 1999. PMID: 10203135
Mapping of novel regions of DNA gain and loss by comparative genomic hybridization in esophageal carcinoma in the Black and Colored populations of South Africa.
Du Plessis L, Dietzsch E, Van Gele M, Van Roy N, Van Helden P, Parker MI, Mugwanya DK, De Groot M, Marx MP, Kotze MJ, Speleman F. Du Plessis L, et al. Among authors: van gele m, van roy n, van helden p. Cancer Res. 1999 Apr 15;59(8):1877-83. Cancer Res. 1999. PMID: 10213495
Polymorphisms and mutations found in the regions flanking exons 5 to 8 of the TP53 gene in a population at high risk for esophageal cancer in South Africa.
Vos M, Adams CH, Victor TC, van Helden PD. Vos M, et al. Among authors: van helden pd. Cancer Genet Cytogenet. 2003 Jan 1;140(1):23-30. doi: 10.1016/s0165-4608(02)00638-6. Cancer Genet Cytogenet. 2003. PMID: 12550754
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