本文主要簡介說明 Health Services Research (HSR) 及 Comparative Effectiveness Research (CER) 兩種研究類型，介紹其研究的工具與方法，特別著重於資料庫分析，並提出個人的心得與 經驗，提供有興趣的讀者若干實務閱讀與研究建議。

This review provided a concise introduction regarding applying health services research/ comparative effectiveness analysis in radiation oncology in Taiwan. Research methodology was introduced and personal experiences were provided, especially focused on database analysis. Finally, some suggestions regarding reading and research in this field were provided.