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. 2007 Feb 6;96(4):623–630. doi: 10.1038/sj.bjc.6603609

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Copyright © 2007 Cancer Research UK

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Cumulative detection of NPC cases of different preclinical EBV serologic profiles. One hundred and seven NPC cases were separated into three categories, designated types I–III, according to their preclinical serologic profiles (see Figure 4): type I cases are indicated by closed triangles, type II by open triangles and type III by open squares.