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   4661篇
  免费   482篇
  国内免费   17篇
耳鼻咽喉   13篇
儿科学   44篇
妇产科学   77篇
基础医学   283篇
口腔科学   56篇
临床医学   620篇
内科学   350篇
皮肤病学   83篇
神经病学   119篇
特种医学   35篇
外科学   424篇
综合类   664篇
预防医学   1850篇
眼科学   4篇
药学   221篇
中国医学   109篇
肿瘤学   208篇
  2024年   11篇
  2023年   99篇
  2022年   192篇
  2021年   226篇
  2020年   189篇
  2019年   215篇
  2018年   291篇
  2017年   177篇
  2016年   148篇
  2015年   153篇
  2014年   444篇
  2013年   364篇
  2012年   360篇
  2011年   384篇
  2010年   311篇
  2009年   248篇
  2008年   260篇
  2007年   300篇
  2006年   206篇
  2005年   152篇
  2004年   92篇
  2003年   84篇
  2002年   55篇
  2001年   35篇
  2000年   38篇
  1999年   34篇
  1998年   12篇
  1997年   9篇
  1996年   8篇
  1995年   6篇
  1994年   3篇
  1993年   5篇
  1992年   8篇
  1991年   4篇
  1990年   3篇
  1989年   8篇
  1988年   3篇
  1987年   2篇
  1986年   3篇
  1985年   3篇
  1984年   4篇
  1983年   3篇
  1982年   2篇
  1981年   2篇
  1979年   1篇
  1978年   1篇
  1974年   2篇
排序方式: 共有5160条查询结果,搜索用时 15 毫秒
21.
目的:通过研究叙词表覆盖学科的学科交叉现象及交叉程度,优化叙词表专业概念的收录比例,促进叙词表概念关系的构建。方法:基于传统的分类法体系——分类号,统计生物、医学、农业三大学科的文献产出数量及其拥有的多个分类号的文献数量,分析3个学科间的交叉现象及程度。结果:医学领域文献产出数最多,生物与农业两学科的交叉现象最明显。结论:研究与分析文献分类信息、学科交叉现象可以促进叙词表交叉概念的遴选。  相似文献   
22.
Despite the availability of medications that reduce fracture risk, most women who sustain a hip fracture are not evaluated or treated for osteoporosis. While a number of studies have attributed this to a lack of physician awareness, no studies have evaluated this problem from the patient’s perspective. To explore the process a woman negotiates when deciding to accept pharmacologic treatment for osteoporosis after hip fracture, we used a stage-of-change model to characterize a consecutive series of 70 postmenopausal women (mean age 85 years) admitted to a tertiary care hospital with an acute low-impact hip fracture between May 2000 and August 2000. We measured stage-of-change using a modified form of the Weinstein Precaution Adoption Process Model (PAPM). The majority of patients (65%) were ineligible because of dementia or delirium; only 29 were eligible and 21 were enrolled. Most women (62%) were in stages 1 or 2 of the PAPM, indicating that they were unaware of osteoporosis or had never considered pharmacologic treatment for it. The only factors associated with a more advanced PAPM stage (indicating active consideration or currently taking treatment) were a previous bone mineral density (BMD) evaluation (p= 0.007) and a diagnosis of osteoporosis (p= 0.001). Although 48% of women had a previous fragility fracture and osteoporosis knowledge was poor overall (mean score 52% correct), neither was associated with a more advanced PAPM stage in this sample. In conclusion, women evaluated after hip fracture were not ready to accept pharmacologic treatment for osteoporosis; they were unaware that they had osteoporosis or had never considered treatment for it. For a woman to advance through the behavior change process, she must first be made aware of the problem that requires a change in behavior. Physicians play a crucial role in promoting awareness of the diagnosis of osteoporosis after fracture, which in turn is associated with patient advancement through the behavior change process and the decision to accept pharmacologic intervention. The large number of cognitively impaired patients in this population, however, will certainly make efforts to improve osteoporosis awareness, diagnosis and intervention more challenging. Received: 20 August 2001 / Accepted: 12 December 2001  相似文献   
23.
Due to a national theoretical training provided to all resident for many years and the ongoing discussions to change the organization of the resident training of specialized study diploma (SSD) of nephrology, a survey was done to assess the perception of skills acquired in the management of different clinical situations in terms of knowledge, expertise and attitudes. The expected results are intended to identify new training procedures for future nephrologists in France. The study was performed in 112 resident from 3rd and 4th year of nephrology resident training attending an educational seminar of the University College of Nephrology Teachers in May 2014. The survey was conducted with a self-administered anonymous questionnaire to assess the perception of the acquisition of different skills. The results show a heterogeneity acquisition between different areas of skills suggesting possible improvement with development of outpatient activity or with training in specialized units such as for peritoneal dialysis or plasma exchange activity. Therefore, these findings suggest further structuring of the regional training and development of the simulation training to acquire the expertise and attitudes. Finally, the use of an evaluation book of skills acquired throughout the training could be interesting in the context of standardization of validating training of nephrologists as proposed in the reform of the SSD of nephrology.  相似文献   
24.
25.
26.
27.
28.
目的 分析近20年我国助产教育研究现状、发展趋势及前沿热点。方法 以"助产教育"OR"助产教学"为主题,检索中国知网数据库中2001年至2021年期刊文献。运用CiteSpace 5.7R5软件对其进行可视化分析,并生成知识图谱。结果 本研究共纳入中文文献548篇,年度发文量呈整体上升趋势;国内助产教育研究领域已形成明显核心团队,核心作者群间合作较少;《卫生职业教育》《中华护理教育》《中国高等医学教育》是载文量前3的杂志;关键词聚类显示频次最高的6个主题依次是助产专业、助产人员、助产教育、实践教学、分娩方式、教学模式,形成了助产教育等10个聚类群;我国助产教育领域研究前期多为临床技能教学、结构性考核、教学模式等研究,近3年逐渐转变为模拟教学、翻转课堂、产后康复等方面。结论 我国助产教育研究范围较广且形成明显核心团队,但相关性较弱且研究团队间交流合作较少,高层次助产教育领域研究不足。助产教育者和研究者应给予足够重视,对相关方面展开深入研究。  相似文献   
29.
ObjectiveTo investigate the knowledge and management of Relative Energy Deficiency in Sport (RED-S), from the perspective of lightweight rowers and physiotherapists.DesignSemi-structured individual qualitative interviews.MethodsPhysiotherapists who had worked with lightweight rowers, and current and former lightweight rowers (who had experienced at least one symptom of RED-S), undertook audio-recorded semi-structured telephone interviews. An inductive thematic analysis was performed, facilitated by NVivo software.ResultsTwelve physiotherapists (n = 6 females, 1–20 years of experience managing lightweight rowers) and twelve lightweight rowers (n = 8 females, 1–8 years lightweight rowing experience, intermediate to elite/international level) were interviewed. Five key themes were identified: insufficient knowledge of RED-S, inadequate RED-S education, inappropriate management of RED-S, referral to other health professionals, prioritising performance over health. Participants provided suggestions for improving knowledge and management of RED-S in lightweight rowers, including formal physiotherapy education and training, and targeted education for athletes and coaches.ConclusionsThere was a significant lack of awareness of RED-S amongst physiotherapists and lightweight rowers. Most physiotherapists were not confident discussing or managing RED-S in athletes, and lightweight rowers were dissatisfied with the management they received. Improving RED-S education for physiotherapists and athletes may have important health implications for lightweight rowers.  相似文献   
30.
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