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©The Author(s) 2003. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Jun 15, 2003; 9(6): 1187-1190
Published online Jun 15, 2003. doi: 10.3748/wjg.v9.i6.1187
Published online Jun 15, 2003. doi: 10.3748/wjg.v9.i6.1187
Research and control of well water pollution in high esophageal cancer areas
Xiu-Lan Zhang, Zhi-Feng Chen, Shuo-Yuang Liang, Cancer Institute, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, Hebei Province, China
Bing Zhang, Xing Zhang, School of Public Health, Hebei Medical University, Shijiazhuang 050017, Hebei Province, China
Jun-Zhen Zhang, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, Hebei Province, China
Fan-Shu Men, Shu-Liang Zheng, Xiang-Ping Li, Cixian Cancer Institute, Cixian County, Hebei Provence, China
Xiu-Lan Bai, Chichen Health Center, Chichen County, Hebei Province, China
Author contributions: All authors contributed equally to the work.
Supported by Ministry of Education of China, No.85-914-01-01
Correspondence to: Dr. Xiu-Lan Zhang, Cancer Institute, the Fourth Hospital of Hebei Medical University, 12 Jian Kang Lu, Shijiazhuang 050011, Hebei Province, China. czf@xinhuanet.com
Telephone: +86-311-5825709 Fax: +86-311-6077634
Received: October 8, 2002
Revised: December 4, 2002
Accepted: December 22, 2002
Published online: June 15, 2003
Revised: December 4, 2002
Accepted: December 22, 2002
Published online: June 15, 2003
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