150国际麻醉学与复苏杂志2021年2月第42卷第2期 Int J Anesth Resus，February 2021，Vol. 42,No.2
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halloween什么意思
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(本文编辑：华云）
•读者•作者•编者•
关键词的选取
欧美乡村音乐关键词尽量选用美国《医学索引》的《医学主题词表》(Medical Suhjprt Headings, MeSH)中的主题词。国内出版的MfiSH词表是由美国国立 医学图书馆(NLM)编制授权中国医学科学院医学信息研究所编译的《医学主题词注释字顺表》。
由于医学科学技术的飞速发展.M A H词表的内容无法及时包含和反映新概念、新名词，或涉及MeSH同表中未收录的词，如中医药学中的 一些名词、流行病学调查研究中涉及的地名等.这时的主题标引选用自由词作为关键词。
医学论文关键词中的自由词也多为规范的专业名词术语，如全国科学技术名词审定委员会公布的名词术语。对于新的名词，可能存在同 一概念有多个名词或无规范词时，要选取使用频次较高的词作为关键词.，
不论是主题词还是自由同，要注意选取针对本篇论文，能够准确反映论文主要、重点信息，具有实质意义的词或词组。
