首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   5624篇
  免费   683篇
  国内免费   24篇
耳鼻咽喉   25篇
儿科学   75篇
妇产科学   58篇
基础医学   839篇
口腔科学   31篇
临床医学   589篇
内科学   329篇
皮肤病学   25篇
神经病学   247篇
特种医学   77篇
外科学   256篇
综合类   1682篇
预防医学   1352篇
眼科学   20篇
药学   383篇
  3篇
中国医学   106篇
肿瘤学   234篇
  2023年   90篇
  2022年   182篇
  2021年   242篇
  2020年   251篇
  2019年   206篇
  2018年   214篇
  2017年   227篇
  2016年   239篇
  2015年   263篇
  2014年   543篇
  2013年   462篇
  2012年   463篇
  2011年   416篇
  2010年   350篇
  2009年   318篇
  2008年   295篇
  2007年   263篇
  2006年   218篇
  2005年   179篇
  2004年   173篇
  2003年   121篇
  2002年   90篇
  2001年   69篇
  2000年   62篇
  1999年   46篇
  1998年   46篇
  1997年   28篇
  1996年   30篇
  1995年   23篇
  1994年   21篇
  1993年   17篇
  1992年   10篇
  1991年   17篇
  1990年   12篇
  1989年   15篇
  1988年   14篇
  1987年   6篇
  1986年   5篇
  1985年   6篇
  1984年   11篇
  1983年   9篇
  1982年   11篇
  1980年   14篇
  1979年   4篇
  1978年   10篇
  1977年   6篇
  1976年   5篇
  1975年   4篇
  1974年   7篇
  1973年   6篇
排序方式: 共有6331条查询结果,搜索用时 140 毫秒
31.
冯琦 《医学信息学杂志》2016,37(11):82-84,88
分析精细化服务的含义,探讨精细化知识/信息服务的措施和途径,包括服务内容精细、服务过程个性化、服务方法人性化,指出精细化信息服务对医院图书馆员的要求。医院图书馆需要通过精细化服务,为临床医护人员提供高质量的医学信息资源,提高其信息素养和信息资源获取能力。  相似文献   
32.
33.
目的 回顾1959年至2018年发表的灸法治疗失眠的临床文献,总结归纳灸法治疗失眠的临床应用规律。方法 检索《中国针灸信息库》、中国期刊全文数据库(清华同方)、万方数字化期刊(万方)、中文科技期刊全文数据库(维普),按照纳入和排除标准筛选灸法治疗失眠的临床研究文献,进行计量分析、聚类分析和关联性分析。结果 艾灸治疗失眠应用频次较高的穴位依次为百会、三阴交、神门、足三里;足太阳膀胱经穴应用频次最高,其次是督脉穴和肾经穴。下肢部的腧穴使用频次最高,其次为头面部、背部。关联性较高的穴对为内关、足三里、神门、百会和三阴交,关联性较高的治疗方法为艾条灸配合针刺。灸法配合中药的总有效率最高,其次为灸法配合针刺,疗效均优于单纯灸法(均P < 0.05)。对比灸法、灸药并用、灸刺并用疗法治疗前后的PSQI评分,灸法与灸药并用疗法比较差异有统计学意义(P < 0.05),与灸刺并用比较差异无统计学意义(P > 0.05)。结论 灸法治疗失眠的组方中主要穴对为内关、足三里、神门、百会和三阴交。配合疗法中灸刺结合的使用频率最高,但灸法配合中药疗法的有效率最高,对于PSQI评分的改善程度亦最大。  相似文献   
34.
ObjectiveTo synthesize current evidence about experiences and information needs of parents/caregivers managing pediatric fever.MethodsWe used systematic review methodology with an a priori protocol. We searched Medline, Embase, PsycINFO, CINAHL and ProQuest Dissertations and Theses Global, from 2000 to May 2018.ResultsWe included thirty-six studies (n = 29 quantitative, n = 7 qualitative; 15,727 participants). Quantitative data contained four themes; 1) caregivers seek information about pediatric fever, 2) low knowledge is coupled with misconceptions and anxiety, 3) fever assessment and management practices vary, 4) demographic factors (e.g., ethnicity, age, socioeconomic status, education) influence information needs and health practices. Qualitative data contained three themes; 1) tension between logic and emotion, 2) responsibility contrasted with sense of vulnerability, 3) seeking support and information to build confidence.ConclusionParents often overestimate the risks associated with pediatric fever and struggle to make decisions during a child’s febrile illness — leading to caregiving actions that may not reflect current clinical recommendations. Parents seek knowledge about how to care for a febrile child at home and what indicators should prompt them to seek medical attention.Practice ImplicationsIn addition to providing clear, reliable information, interventions that address educational, pragmatic, and emotional domains may be effective in supporting parents.  相似文献   
35.
探讨目前流行的3种网络信息交流工具——博客、微博和微信,比较分析其在医院图书馆发展中的作用及其特征。指出医院图书馆应根据自身需要应用这些交流工具开展相应服务,为用户搭建互动交流平台,促进服务质量的提高。  相似文献   
36.
ABSTRACT

Media coverage on coronavirus disease 2019 (COVID-19) has been extensive, yet large gaps remain in our understanding of the role of social media platforms during worldwide health crisis. The purpose of this study was to assess the most viewed YouTube videos on COVID-19 for medical content. We coded video characteristics, source, and medical content of the 113 most-widely viewed videos about COVID-19. Seventy-nine (69.9%) videos were classified as useful, and 10 (8.8%) videos were classified as misleading. Independent users were more likely to post misleading videos than useful videos (60.0% vs 21.5%, P?=?0.009). News agencies were more likely to post useful videos than misleading videos (72.2% vs 40.0%, P?=?0.039). Useful videos were more likely to present any information on prevalence or incidence (79.7% vs 20.0%, P?<?0.001), as well as information on outcomes or prognosis (84.8% vs 30.0%, P?<?0.001) compared to misleading videos. The World Health Organization contributed one useful video (1.3%), while no videos from the Center for Disease Control were included. Although YouTube generally is a useful source of medical information on the COVID-19 pandemic, increased efforts to disseminate accurate information from reputable sources is desired to help mitigate disease spread and decrease unnecessary panic in the general population.  相似文献   
37.
38.
During the last decade, there have been several publications highlighting the need for consistent terminology in breastfeeding research. Standard terms and definitions are essential for the comparison and interpretation of scientific studies that, in turn, support evidence‐based education, consistency of health care, and breastfeeding policy. Inconsistent advice is commonly reported by mothers to contribute to early weaning. A standard language is the fundamental starting point required for the provision of consistent advice. LactaPedia ( www.lactapedia.com ) is a comprehensive lactation glossary of over 500 terms and definitions created during the development of LactaMap ( www.lactamap.com ), an online lactation care support system. This paper describes the development of LactaPedia, a website that is accessible free of charge to anyone with access to the Internet. Multiple methodological frameworks were incorporated in LactaPedia's development in order to meet the needs of a glossary to support both consistent health care and scientific research. The resulting LactaPedia methodology is a six‐stage process that was developed inductively and includes framework to guide vetting and extension of its content using public feedback via discussion forums. The discussion forums support ongoing usability and refinement of the glossary. The development of LactaPedia provides a fundamental first step towards improving breastfeeding outcomes that are currently well below World Health Organisation recommendations globally.  相似文献   
39.

Aims

Delaying progression, ameliorating symptoms and maintaining quality of life (QoL) are primary aims of treatment for metastatic castrate-resistant prostate cancer (mCRPC). Real-world rather than clinical trial data about symptoms and side-effects are sparse. In EXTREQOL, patients' QoL, pain and information needs were recorded during treatment.

Material and methods

Men with mCRPC from 20 UK cancer centres starting various systemic mCRPC treatments completed QoL, pain and information needs questionnaires at baseline, 3 and 6 months.

Results

In total, 132 patients were recruited. Overall QoL declined significantly by 6 months (Functional Assessment of Cancer Therapy-Prostate [FACT-P] mean = –3.89, 95% confidence interval –6.7 to –1.05, P = 0.007; Trial Outcome Index [TOI] analysis mean = –3.10, 95% confidence interval –5.34 to –0.83, P = 0.007). Those who came off novel therapy and remained on luteinising hormone-releasing hormone agonist therapy alone had worse scores than patients receiving concomitant chemotherapy (Prostate Concerns Subscale mean difference = –4.45, 95% confidence interval –7.06 to –1.83, P = 0.001; TOI mean difference = –5.62, 95% confidence interval –10.97 to –0.26, P = 0.040). At 3 and 6 months, men who reported pain at baseline improved (43%, 40%), but for others pain levels remained the same (45%, 42%) or worsened (13%, 18%). Information regarding supportive care was lacking throughout the period of time on the study.

Conclusion

Most mCRPC treated patients experience reduced QoL and inadequate pain control. More help with pain management and better information provision regarding supportive care is warranted.  相似文献   
40.
BackgroundAs the number of providers administering vaccines increases, including pharmacists, there is a concern of fragmented immunization records in state and regional immunization information systems (IIS). In order for IIS to have complete records, it is critical that each provider administering vaccines, including pharmacists, participate and update the IIS each time a vaccine is administered to a patient. In Alabama, provider participation in the state IIS is not mandatory; as a result, less than 25% of adults over the age of 19 have immunization data recorded. IIS participation among independent pharmacies is of particular concern as approximately 40% of Alabama pharmacies are independently owned, but only 27% of these are enrolled in the IIS.ObjectiveThe objective of this report is to describe a study protocol to assess the impact of an IIS training program among community pharmacies’ IIS enrollment and actual participation rates.MethodsThe research design is a randomized controlled trial. Study participants are Alabama pharmacists who work in independently owned pharmacies that currently provide at least one type of non-seasonal vaccine and are not currently enrolled in the Alabama IIS. Multiple outcomes including awareness, knowledge, attitudes, intention, IIS enrollment, and IIS participation will be compared between intervention and control groups across three time points (baseline, one-month, and three-months). Individual and organizational factors will be measured to identify any possible associations with outcomes.ImplicationsThe expected outcome is to create an effective training program that is scalable and ready for dissemination. If successful, this training program can be replicated and used to significantly impact the completeness and accuracy of IIS across the U.S., providing the potential for IIS to be used consistently in assessing immunization status and recommending additional vaccines in the pharmacy setting, thereby improving vaccination coverage and making the provision of immunizations safe and efficient.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号