a dna renaturation method in gel was used to detect amplified dna fragments in eight gastric cancer cell lines , kato-iii , okajima , sch , mkn1 , mkn7 , mkn28 , mkn45 and mkn74 cells , and tissues of three metastases of gastric cancers to lymph nodes .
C0000702
a dna
C0012854
dna