Lee Li-Jen Chen

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BACKGROUND Metastasis patterns in cancer vary both spatially and temporally. Network modelling may allow the incorporation of the temporal dimension in the analysis of these patterns. METHODS We used Medicare claims of 2,265,167 elderly patients aged > or = 65 years to study the large-scale clinical pattern of metastases. We introduce the concept of a(More)
The Internet (the net) and World Wide Web (the web) have grown rapidly in the past decade and have come to play a major role in supporting discourse and publication in scholarly communities. The development and application of new services has been very rapid with little central planning, and, despite the widespread use, there is little information as yet on(More)
The Internet has become a major resource for virtual organizations, and it has given new prominence to human discourse as a continuing source of knowledge. With the growth of usage of list servers and the World Wide Web, it is important to model and support the processes by which knowledge is acquired and disseminated through the net. The global virtual(More)
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