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©The Author(s) 2003. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Jan 15, 2003; 9(1): 99-103
Published online Jan 15, 2003. doi: 10.3748/wjg.v9.i1.99
Published online Jan 15, 2003. doi: 10.3748/wjg.v9.i1.99
Nested case-control study on the risk factors of colorectal cancer
Kun Chen, Jian Cai, Department of Epidemiology, Zhejiang University School of Public Health, Hangzhou 310006, Zhejiang Province, China
Xi-Yong Liu, Shu Zheng, Cancer Institute of Zhejiang University, Hangzhou 310009, Zhejiang Province, China
Xi-Yuan Ma, Kai-Yan Yao, Institute of Cancer Research and Prevention, Jiashan 314000, Zhejiang Province, China
Author contributions: All authors contributed equally to the work.
Supported by the National Natural Science Foundation of China, No. 30170828
Correspondence to: Kun Chen, Department of Epidemiology, Zhejiang University School of Public Health, 353 Yan-an Road, Hangzhou 310006, Zhejiang Province, China. ck@zjuem.zju.edu.cn
Telephone: +86-571-87217190
Received: April 29, 2002
Revised: May 23, 2002
Accepted: June 8, 2002
Published online: January 15, 2003
Revised: May 23, 2002
Accepted: June 8, 2002
Published online: January 15, 2003
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