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   40609篇
  免费   3227篇
  国内免费   122篇
耳鼻咽喉   314篇
儿科学   1599篇
妇产科学   1153篇
基础医学   5449篇
口腔科学   535篇
临床医学   5095篇
内科学   7948篇
皮肤病学   693篇
神经病学   4155篇
特种医学   1036篇
外国民族医学   5篇
外科学   4340篇
综合类   597篇
现状与发展   1篇
一般理论   47篇
预防医学   4732篇
眼科学   768篇
药学   2714篇
中国医学   57篇
肿瘤学   2720篇
  2023年   272篇
  2022年   203篇
  2021年   970篇
  2020年   660篇
  2019年   1100篇
  2018年   1179篇
  2017年   844篇
  2016年   964篇
  2015年   1011篇
  2014年   1434篇
  2013年   2088篇
  2012年   3097篇
  2011年   3183篇
  2010年   1737篇
  2009年   1458篇
  2008年   2608篇
  2007年   2816篇
  2006年   2700篇
  2005年   2598篇
  2004年   2349篇
  2003年   2128篇
  2002年   2060篇
  2001年   495篇
  2000年   430篇
  1999年   411篇
  1998年   350篇
  1997年   326篇
  1996年   234篇
  1995年   239篇
  1994年   218篇
  1993年   255篇
  1992年   276篇
  1991年   253篇
  1990年   218篇
  1989年   197篇
  1988年   187篇
  1987年   167篇
  1986年   145篇
  1985年   156篇
  1984年   142篇
  1983年   142篇
  1982年   125篇
  1981年   105篇
  1980年   113篇
  1979年   148篇
  1978年   106篇
  1977年   91篇
  1974年   79篇
  1973年   79篇
  1972年   71篇
排序方式: 共有10000条查询结果,搜索用时 28 毫秒
1.
2.
3.
4.
5.
Journal of Thrombosis and Thrombolysis - Alteplase treatment can cause a systemic coagulopathy although the incidence and contributory factors are unknown in pulmonary embolism (PE). Fixed-dosing...  相似文献   
6.
Smoking cessation reduces the risk of death, improves recovery, and reduces the risk of hospital readmission. Evidence and policy support hospital admission as an ideal time to deliver smoking-cessation interventions. However, this is not well implemented in practice. In this systematic review, the authors summarize the literature on smoking-cessation implementation strategies and evaluate their success to guide the implementation of best-practice smoking interventions into hospital settings. The CINAHL Complete, Embase, MEDLINE Complete, and PsycInfo databases were searched using terms associated with the following topics: smoking cessation, hospitals, and implementation. In total, 14,287 original records were identified and screened, resulting in 63 eligible articles from 56 studies. Data were extracted on the study characteristics, implementation strategies, and implementation outcomes. Implementation outcomes were guided by Proctor and colleagues' framework and included acceptability, adoption, appropriateness, cost, feasibility, fidelity, penetration, and sustainability. The findings demonstrate that studies predominantly focused on the training of staff to achieve implementation. Brief implementation approaches using a small number of implementation strategies were less successful and poorly sustained compared with well resourced and multicomponent approaches. Although brief implementation approaches may be viewed as advantageous because they are less resource-intensive, their capacity to change practice in a sustained way lacks evidence. Attempts to change clinician behavior or introduce new models of care are challenging in a short time frame, and implementation efforts should be designed for long-term success. There is a need to embrace strategic, well planned implementation approaches to embed smoking-cessation interventions into hospitals and to reap and sustain the benefits for people who smoke.  相似文献   
7.
Journal of Thrombosis and Thrombolysis - Over the last few years data from our group have indicated that α-synuclein is important in development of immune cells as well as potentially...  相似文献   
8.
Objective: Our aim was to examine the reliability and validity of the Rupture Resolution Rating System (3RS), an observer-based measure of alliance ruptures and resolution processes. Method: We used the 3RS to rate early sessions from 42 cases of cognitive behavior therapy. We compared the 3RS to a simplified version of the Structural Analysis of Social Behavior (SASB), as well as patient and therapist self-reports of ruptures and the alliance. Results: Coders achieved high rates of interrater reliability on the frequency of confrontation and withdrawal ruptures and resolution strategies (ICCs?=?.85 to .98), as well as ratings of the therapist’s contribution to ruptures and the extent to which ruptures were resolved (ICC?=?.92). Predictive validity analyses found that confrontation markers (d?=?.74), successful resolution (d?=?.67), and ratings of the therapist’s contribution to ruptures (d?=?.61) predicted dropout from therapy. Analyses of convergent validity with the SASB failed to meet predictions; however, we observed theoretically coherent relations between 3RS and SASB variables. Confrontation rupture markers were significantly associated with patient self-report of rupture (d?=?1.54) and therapist self-reported alliance (r?=??.50, p?=?.002). Conclusions: This study provides evidence that the 3RS is a reliable and useful tool for examining psychotherapy process and predicting dropout.

Clinical or methodological significance of this article: This study provides evidence of the reliability and validity of the 3RS, an observer-based measure of alliance ruptures and resolution processes. The 3RS can be used to identify problems in the therapeutic relationship that are associated with premature dropout from therapy.  相似文献   

9.
10.
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