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   41592篇
  免费   3321篇
  国内免费   416篇
耳鼻咽喉   216篇
儿科学   614篇
妇产科学   760篇
基础医学   1307篇
口腔科学   626篇
临床医学   9543篇
内科学   3167篇
皮肤病学   221篇
神经病学   830篇
特种医学   544篇
外国民族医学   1篇
外科学   4179篇
综合类   6759篇
现状与发展   3篇
一般理论   3篇
预防医学   11004篇
眼科学   194篇
药学   3686篇
  120篇
中国医学   745篇
肿瘤学   807篇
  2024年   35篇
  2023年   832篇
  2022年   1325篇
  2021年   2051篇
  2020年   2619篇
  2019年   1622篇
  2018年   1531篇
  2017年   1551篇
  2016年   1609篇
  2015年   1618篇
  2014年   3842篇
  2013年   3502篇
  2012年   3169篇
  2011年   3157篇
  2010年   2611篇
  2009年   2160篇
  2008年   2182篇
  2007年   1899篇
  2006年   1726篇
  2005年   1309篇
  2004年   1100篇
  2003年   840篇
  2002年   583篇
  2001年   437篇
  2000年   361篇
  1999年   280篇
  1998年   266篇
  1997年   187篇
  1996年   158篇
  1995年   112篇
  1994年   101篇
  1993年   101篇
  1992年   64篇
  1991年   76篇
  1990年   37篇
  1989年   34篇
  1988年   33篇
  1987年   27篇
  1986年   23篇
  1985年   40篇
  1984年   26篇
  1983年   24篇
  1982年   15篇
  1981年   18篇
  1980年   14篇
  1979年   3篇
  1978年   7篇
  1977年   3篇
  1976年   2篇
  1972年   3篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
101.
通过文献回顾总结当前国内疼痛专科护士发展及癌痛管理中的不足,在此基础上以Brown高级护理实践理论框架为理论指导,侧重于资格要求、癌痛评估以及出院后的随访对癌痛专科护士岗位构建进行设计,旨在更好地促进癌痛专科护理的开展,提升癌痛护理水平。  相似文献   
102.
103.
PurposeTo retrospectively report on safety, pain relief and local tumor control achieved with percutaneous ablation of sacral bone metastases.Materials and methodsFrom February 2009 to June 2020, 23 consecutive patients (12 women and 11 men; mean age, 60 ± 8 [SD] years; median, 60; range: 48-80 years) with 23 sacral metastases underwent radiofrequency (RFA) or cryo-ablation (CA), with palliative or curative intent at our institution. Patients’ demographics and data pertaining to treated metastases, procedure-related variables, safety, and clinical evolution following ablation were collected and analyzed. Pain was assessed with numerical pain rating scale (NPRS).ResultsSixteen (70%) patients were treated with palliative and 7 (30%) with curative intent. Mean tumor diameter was 38 ± 19 (SD) mm (median, 36; range: 11-76). External radiation therapy had been performed on five metastases (5/23; 22%) prior to ablation. RFA was used in 9 (39%) metastases and CA in the remaining 14 (61%). Thermo-protective measures and adjuvant bone consolidation were used whilst treating 20 (87%) and 8 (35%) metastases, respectively. Five (22%) minor complications were recorded. At mean 31 ± 21 (SD) (median, 32; range: 2-70) months follow-up mean NPRS was 2 ± 2 (SD) (median, 1; range: 0–6) vs. 5 ± 1 (median, 5; range: 4–8; P < 0.001) at the baseline. Three metastases out of 7 (43%) undergoing curative ablation showed local progression at mean 4 ± 4 (SD) (median, 2; range: 1-8) months follow-up.ConclusionPercutaneous ablation of sacral metastases is safe and results in significant long-lasting pain relief. Local tumor control seems sub-optimal; however, further investigations are needed to confirm these findings due to paucity of data.  相似文献   
104.
目的分析在新时期医院卫生管理工作中实施持续质量改进措施的效果。方法选取2017年1月—2018年1月期间本院60名医务人员作为对照组,给予常规卫生管理,选取2018年2月—2019年2月期间本院60名医务人员作为观察组,给予持续质量改进管理,对比两组管理效果。结果组间对比,观察组手卫生执行率、手卫生合格率、无菌操作规范率均高于对照组,且观察组卫生知识考核评分及护理满意度评分也高于对照组(P<0.05)。结论在新时期医院卫生管理中实施持续质量改进措施,更有利于提高医院卫生管理的整体水平,进而为医院的安全、健康、稳定运行提供保障。  相似文献   
105.
Forensic science is undertaken in support of law enforcement investigations, criminal justice prosecutions, intelligence, and military objectives. There are different forensic operating models to meet these various objectives and no unified approach to forensic science has been described. There are common challenges in the military domain, which impacts the delivery of forensic science, including: different terminology between organizations, complex operating environments, operating siloes, inward-looking military structures, quality management, and resource constraints. One solution to these challenges is to apply modern organizational theory to military-focused forensic science. Organizational theory is the study of organizations in a structural sense, including objectives, people, structure and management. The modern organizational theory systems approach describes how organizations should be viewed as systems within larger systems. In the work presented in this paper, a systems approach has been applied, for the first time, to military forensic exploitation to address the common issues faced by military organizations. The advantages of applying a systems approach to military forensic exploitation are that it is applicable across forensic science organizations, it is flexible and scalable to meet the changing external environment, and it articulates the redundancies in the system to help address system failures.  相似文献   
106.
Autosomal Dominant Familial Hypercholesterolaemia (FH) is the commonest inherited disorder of lipoprotein metabolism. Untreated monogenic FH caused by mutations in the LDLR, APOB or PCSK9 genes result in early onset cardiovascular death (below the age of 60 years). In the UK the prevalence of heterozygous FH is 1 in 270 and homozygous FH is 160,000 approximately.The introduction of statins nearly three decades ago has altered the natural history of FH, with a significant reduction of cardiovascular related morbidity and mortality. There is increasing evidence that early childhood interventions such as lifestyle choices, healthy eating and commencing statins by the age of 10 years would potentially prevent early onset cardiovascular disease and mortality in monogenic FH. The medium term safety of statins in children has been demonstrated. The UK paediatric FH register data has shown that children with FH are less obese than the normal population and the register aims to monitor the longer-term safety of statins in children with FH. Child-parent screening would potentially benefit the child and enables identifying a parent with FH, before the onset of a life threatening cardiovascular event. In addition, genetic cascade testing of relatives of an affected individual has been shown to be highly cost effective.We review the current literature with brief updates on genetics, the UK paediatric FH register data, published recommendations for the management of homozygous and heterozygous FH, lipid lowering therapies in children and screening for FH in childhood.  相似文献   
107.
108.
109.
110.
目的调查呼吸专科护士慢性呼吸疾病管理现状,为提高慢性呼吸疾病的管理水平提供参考。方法依据《中国成人慢性呼吸疾病患者护理管理指南》设计调查问卷,对重庆、四川、贵州、陕西、河北、湖北、海南7省市的205名呼吸专科护士进行问卷调查。结果呼吸专科护士慢性呼吸疾病管理总分为(140.72±23.90)分。慢性呼吸疾病管理得分最低的3个条目有评估工具应用、个性化管理计划的实施、慢阻肺随访的次数及指导哮喘患者使用峰流速仪;呼吸专科护士所在单位慢性呼吸疾病管理平台建设均低于50%。结论呼吸专科护士慢性呼吸疾病管理处于中等偏下水平,评估是慢性呼吸疾病管理的薄弱点。需加强呼吸专科护士专业能力培养,规范慢性呼吸疾病全程管理,强化医院平台建设等,提高慢性呼吸疾病的管理水平。  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