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   686篇
  免费   46篇
  国内免费   1篇
耳鼻咽喉   3篇
儿科学   8篇
妇产科学   7篇
基础医学   32篇
口腔科学   2篇
临床医学   36篇
内科学   131篇
皮肤病学   8篇
神经病学   34篇
特种医学   7篇
外科学   18篇
综合类   179篇
预防医学   146篇
药学   91篇
  1篇
中国医学   28篇
肿瘤学   2篇
  2023年   5篇
  2022年   9篇
  2021年   19篇
  2020年   23篇
  2019年   22篇
  2018年   21篇
  2017年   16篇
  2016年   14篇
  2015年   29篇
  2014年   71篇
  2013年   73篇
  2012年   61篇
  2011年   58篇
  2010年   46篇
  2009年   33篇
  2008年   33篇
  2007年   36篇
  2006年   29篇
  2005年   15篇
  2004年   15篇
  2003年   10篇
  2002年   14篇
  2001年   11篇
  2000年   10篇
  1999年   13篇
  1998年   9篇
  1997年   4篇
  1996年   7篇
  1995年   9篇
  1994年   3篇
  1993年   3篇
  1992年   1篇
  1991年   1篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1985年   3篇
  1982年   2篇
  1981年   1篇
  1972年   1篇
排序方式: 共有733条查询结果,搜索用时 781 毫秒
1.
2.
This study used the National Survey of Ambulatory Surgery (NSAS) database to measure the incidence of and risk factors for symptoms in the ambulatory surgery center and problems within 24 h after isolated carpal tunnel release (CTR). The NSAS contained records on 400,000 adult patients with carpal tunnel syndrome who were treated with CTR in 2006, based on ICD-9 codes. The type of anesthesia used and factors associated with symptoms and problems were sought in bivariate and multivariable statistical analyses. The mean duration of the procedure was 16 ± 8.8 min. Only 5 % were performed under local anesthesia without sedation, 45 % with IV sedation, 28 % regional anesthesia, and 19 % general anesthesia. Symptoms in the ambulatory surgery center or a problem within 24 h after discharge were recorded in 10 % of patients, all of them minor and transient, including difficulties with pain and its treatment. The strongest risk factors were male sex, age of 45 years and older, and participation of an anesthesiologist. Local anesthesia and regional anesthesia were associated with more perioperative symptoms and postoperative problems. Most CTR are performed with some sedation in the United States. CTR is a safe procedure: one in 10 patients will experience a minor issue in the perioperative or immediate postoperative period.  相似文献   
3.
4.
本文提出了我国医疗器械产业中数字化技术发展中存在的主要问题,并分析了问题产生的原因。  相似文献   
5.
医疗机构面临的问题和对策   总被引:1,自引:0,他引:1  
文章就宁波市医疗机构目前情况作了论述,指出目前存在问题主要是卫生资源配置不合理,其原因有体制和政策方面;各级医院的功能错位,导致医疗费用急剧增加;医疗费用构成不舍理,药费比例偏高:医疗机构管理体制和运营机制不能适应市场经济形势;针对上述问题,文章提出的对策为实施区域卫生规划,优化卫生资源配置;加快社区卫生服务建设,增强社区基层卫生服务力量,调整医疗收费价格体系,实行医药分开核算;推进干部人事制度改革,引进竞争机制。  相似文献   
6.
This study describes a small-scale attempt to compare people from two populations in an English county who have grown out of alcohol problems without formal assistance from treatment agencies. The populations were the indigenous white population and the ethnic minority population who originated from the Indian sub-continent, although 40% were born in Britain. There may be more spontaneous remitters and less problematic drinkers in need of specialist services than one would expect on the basis of population and consumption levels in the ethnic minority communities. For both white indigenous and ethnic groups, physical health, self-esteem, ability to cope and work were important motivating factors in reduction or cessation of alcohol use. For the ethnic minority group, social networks, including religiously-based ones, family status and honour were important, whereas accommodation and psychological state were more important to the white indigenous sample. Although the study is anecdotal, a case is made to have services for people with alcohol problems which offer treatments and goals consistent with the attitudes and beliefs of the communities of origin of presenters.  相似文献   
7.
8.
BACKGROUND: No prospective studies exist on the relationship between sleep problems early in life and subsequent alcohol use. Stimulated by the adult literature linking sleep problems to the subsequent onset of alcohol use disorders in some adults, we examined whether sleep problems in early childhood predicted the onset of alcohol and other drug use in adolescence and whether such a relationship was mediated by other known predictors of this relationship, namely, attention problems, anxiety/depression, and aggression in late childhood. METHODS: This study is part of an ongoing longitudinal study of the development of risk for alcohol and other substance use disorders. Study participants were 257 boys from a community-recruited sample of high-risk families. RESULTS: Mothers' ratings of their children's sleep problems at ages 3 to 5 years significantly predicted an early onset of any use of alcohol, marijuana, and illicit drugs, as well as an early onset of occasional or regular use of cigarettes by age 12 to 14. Additionally, although sleep problems in early childhood also predicted attention problems and anxiety/depression in later childhood, these problems did not mediate the relationship between sleep problems and onset of alcohol and other drug use. CONCLUSIONS: This is, to our knowledge, the first study that prospectively examines the relationship between sleep problems and early onset of alcohol use, a marker of increased risk for later alcohol problems and alcohol use disorders. Moreover, early childhood sleep problems seem to be a robust marker for use of drugs other than alcohol. Implications for the prevention of early alcohol and other drug use are discussed.  相似文献   
9.
医改,政府在围绕解决人民群众看病难、看病贵等方面做了大量的工作。但一些如绩效工资分配不合理、医保报账定额限制、医技人员缺乏、医疗机构城乡布点不均、临床医疗与公共卫生信息不能共享等问题,在基层越发突出,一定程度更加重了群众“看病难”和基层医疗机构的发展。提出绩效工资分配政策,适度向基层医疗机构倾斜,稳定基层队伍;提高基层医疗机构医保报账分配额度和病人报销比例,引导病人分级诊疗、科学就医;加强医技人才培训和引进,不断提高基层医疗卫生机构的服务能力;加大财政投入力度,进一步完善基层医疗服务条件等建议。  相似文献   
10.
BACKGROUND: Recent research suggests that a reduced P300 amplitude of the event-related potential is associated with a vulnerability to alcoholism. This study tested the hypothesis that reductions in the P300 amplitude would be associated with specific dimensions of disinhibited personality (social deviance proneness and impulsivity) and that these personality traits would mediate the association between P300 and alcohol problems in a young adult sample that varied widely in disinhibitory traits. METHODS: Alcohol problems, personality (impulsivity, social deviance, harm avoidance, and excitement seeking), and event-related potentials were measured in a sample of 190 subjects (87 men, 103 women) with a mean age of 20.7 +/- 1.9 years. RESULTS: Social deviance, impulsivity, and alcohol problems were associated with reductions in the P300, but only in male subjects. A structural model suggested that social deviance, impulsivity, and alcohol problems were all strongly related to P300 amplitude at Fz. Further analyses indicated that for male subjects, social deviance mediated the association between P300 at Fz and alcohol problems as well as the association between impulsivity and alcohol problems. CONCLUSIONS: This study suggests that reduced P300s are strongly associated with a general tendency toward antisocial, defiant, and impulsive traits, which might, in turn, increase the risk for alcohol abuse. The lack of an association between reduced P300s and personality or alcohol problems in women was unexpected and deserves further study.  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