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   20749篇
  免费   2986篇
  国内免费   67篇
耳鼻咽喉   62篇
儿科学   395篇
妇产科学   1596篇
基础医学   139篇
口腔科学   125篇
临床医学   15179篇
内科学   2111篇
皮肤病学   60篇
神经病学   599篇
特种医学   181篇
外科学   993篇
综合类   39篇
预防医学   1652篇
眼科学   18篇
药学   59篇
中国医学   1篇
肿瘤学   593篇
  2024年   80篇
  2023年   783篇
  2022年   91篇
  2021年   226篇
  2020年   601篇
  2019年   194篇
  2018年   1068篇
  2017年   1325篇
  2016年   1393篇
  2015年   1461篇
  2014年   1493篇
  2013年   1729篇
  2012年   412篇
  2011年   664篇
  2010年   1034篇
  2009年   1321篇
  2008年   638篇
  2007年   541篇
  2006年   555篇
  2005年   451篇
  2004年   408篇
  2003年   358篇
  2002年   303篇
  2001年   468篇
  2000年   270篇
  1999年   416篇
  1998年   573篇
  1997年   685篇
  1996年   634篇
  1995年   562篇
  1994年   406篇
  1993年   328篇
  1992年   248篇
  1991年   236篇
  1990年   233篇
  1989年   181篇
  1988年   138篇
  1987年   130篇
  1986年   122篇
  1985年   141篇
  1984年   102篇
  1983年   97篇
  1982年   81篇
  1981年   88篇
  1980年   50篇
  1979年   76篇
  1978年   58篇
  1977年   65篇
  1976年   65篇
  1972年   81篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
52.
53.
54.
55.
Bisphosphonates are inhibitors of osteoclastic bone resorption with therapeutic benefit in a variety of bone disorders in both adults and children. While these agents have been routinely used in adults for the past three decades, their more recent introduction into paediatric medicine means there is a paucity of data on long‐term safety and effects on dental development. There is uncertainty regarding the dental management of children treated with bisphosphonates, particularly when invasive dental procedures, such as extractions and oral surgical procedures, are required. There are limited data with which to make recommendations about the dental management of patients treated with bisphosphonates, and there are no published recommendations that specifically address paediatric patients. This paper aims to outline paediatric uses and adverse effects of bisphosphonates and present recommendations on the dental management of children receiving bisphosphonates.  相似文献   
56.
Objectives:  Brief motivational interventions have shown promise in reducing harmful behaviors. The authors tested an intervention to increase safety belt use (SBU) among emergency department (ED) patients.
Methods:  From February 2006 to May 2006, the authors conducted a randomized trial of adult ED patients at a teaching hospital in Boston. ED patients were systematically sampled for self-reported SBU. Those with SBU other than "always" were asked to participate. At baseline, participants answered a 9-item series of situational SBU questions, each scored on a 5-point Likert scale. SBU was defined as a continuous variable (9-item average) and as a dichotomous variable (response of "always" across all items). Participants were randomized to an intervention or a control group. The intervention group received a 5- to 7-minute intervention, adapted from classic motivational interviewing techniques, by a trained interventionist. Participants completed a 3-month follow-up phone survey to determine changes from baseline SBU. Continuous and dichotomous SBU were analyzed via analysis of covariance and chi-square testing.
Results:  Of 432 eligible patients, 292 enrolled (mean age 35 years, standard deviation [SD] ±11 years; 61% male). At baseline, the intervention and control groups had similar mean (±SD) SBU scores (2.8 [±1.1] vs. 2.6 [±1.1], p = 0.31) and SBU prevalence (each 0%). At 3 months, 81% completed follow-up. The intervention group had significantly greater improvement in mean (±SD) SBU scores than controls (0.76 [±0.91] vs. 0.34 [±0.88], p < 0.001). Also, SBU prevalence of "always" was higher for the intervention group than controls (14.4% vs. 5.9%, p = 0.03).
Conclusions:  Participants receiving a brief motivational intervention reported higher SBU at follow-up compared to controls. An ED-based intervention may be useful to increase SBU.  相似文献   
57.
58.
As one of Canada’s largest community hospitals with several renowned regional and ambulatory programs, Trillium Health Centre is a leading health care facility in the country. The following article reports the way in which nurses, allied health professionals, managers, and physicians successfully challenged their working practices and achieved greater outcomes for orthopaedic patients, staff and the organization. Two practice improvement studies concerning surgery for hip fracture and total knee replacement are described in essence.  相似文献   
59.
60.
The authors compare the nursing diagnosis ineffective management of therapeutic regimen with that of noncompliance and with Orem's concept of self-care deficit. The article describes how the diagnosis of ineffective management of therapeutic regimen is more comprehensive than noncompliance. A question of patient autonomy is raised considering how the patient manages his or her therapeutic regimen. The major conclusion is that the nursing diagnosis of ineffective management of therapeutic regimen is based on continuous interaction between patient and nurse. The authors recommend that noncompliance be eliminated as a nursing diagnosis.  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