Article Citation
Li J, Feng CW, Zhao ZG, Zhou Q, Wang LD. A preliminary study on ras protein expression in human esophageal cancer and precancerous lesions. World J Gastroenterol 2000; 6(2): 278-280 [PMID: 11819576 DOI: 10.3748/wjg.v6.i2.278]
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