요약
Abstract
1. INTRODUCTION
1.1 The necessity of research
1.2 Securing research ethics
2. SYSTEM MODEL AND METHODS
2.1 Research design
2.2 Data collection target
2.3 Analysis tool
2.4 Data processing
2.5 Data processing and analysis
3. RESULTS
3.1 Frequency analysis
3.2 Overall network analysis
3.3 Frequency analysis by medical terminology system
3.4 Subnetwork Analysis
4. DISCUSSION AND CONCLUSIONS
REFERENCES