软件的操作和使用，具体流程。导入方法。格式的修改。文件的导入口如何将 Pubmed文献导入 Endnote PubMed:non-high-density lip pprotein cholesterol Search Create rss Create alert Advanced Format: Summary- Sort by: Most Recent Per page: 20 Send to w Clipboard: 1 item Choose destination Search r