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   23727篇
  免费   3124篇
  国内免费   174篇
耳鼻咽喉   172篇
儿科学   282篇
妇产科学   354篇
基础医学   1576篇
口腔科学   758篇
临床医学   6822篇
内科学   2560篇
皮肤病学   265篇
神经病学   726篇
特种医学   403篇
外国民族医学   4篇
外科学   2619篇
综合类   2509篇
现状与发展   1篇
一般理论   7篇
预防医学   4646篇
眼科学   144篇
药学   1399篇
  30篇
中国医学   509篇
肿瘤学   1239篇
  2024年   189篇
  2023年   693篇
  2022年   692篇
  2021年   1257篇
  2020年   1538篇
  2019年   1352篇
  2018年   1214篇
  2017年   1148篇
  2016年   995篇
  2015年   1118篇
  2014年   1505篇
  2013年   1700篇
  2012年   1220篇
  2011年   1304篇
  2010年   1137篇
  2009年   1100篇
  2008年   1018篇
  2007年   1010篇
  2006年   972篇
  2005年   1027篇
  2004年   1166篇
  2003年   1342篇
  2002年   393篇
  2001年   327篇
  2000年   289篇
  1999年   257篇
  1998年   205篇
  1997年   144篇
  1996年   123篇
  1995年   100篇
  1994年   89篇
  1993年   81篇
  1992年   59篇
  1991年   51篇
  1990年   30篇
  1989年   19篇
  1988年   30篇
  1987年   21篇
  1986年   17篇
  1985年   13篇
  1984年   16篇
  1983年   8篇
  1982年   15篇
  1981年   4篇
  1980年   10篇
  1979年   6篇
  1978年   6篇
  1976年   3篇
  1974年   4篇
  1973年   4篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
22.
Objective:To observe the changes of symptoms,Chinese medicine(CM)syndrome,and lung inflammation absorption during convalescence in patients with coronavirus disease 2019(COVID-19)who had not totally recovered after hospital discharge and whether CM could promote the improvement process.Methods:This study was designed as a prospective cohort and nested case-control study.A total of 96 eligible patients with COVID-19 in convalescence were enrolled from Beijing Youan Hospital and Beijing Huimin Hospital and followed up from the hospital discharged day.Patients were divided into the CM(64 cases)and the control groups(32 cases)based on the treatment with or without CM and followed up at 14,28,56,and 84 days after discharge.In the CM group,patients received the 28-day CM treatment according to two types of CM syndrome.Improvements in clinical symptoms,CM syndrome,and absorption of lung inflammation were observed.Results:All the 96 patients completed the 84-day follow-up from January 21 to March 28,2020.By the 84th day of follow-up,respiratory symptoms were less than 5%.There was no significant difference in the improvement rates of symptoms,including fatigue,sputum,cough,dry throat,thirst,and upset,between the two groups(P>0.05).Totally 82 patients(85.42%)showed complete lung inflammation absorption at the 84-day follow-up.On day 14,the CM group had a significantly higher absorption rate than the control group(P<0.05)and the relative risk of absorption for CM vs.control group was 3.029(95%confidence interval:1.026-8.940).The proportions of CM syndrome types changed with time prolonging:the proportion of the pathogen residue syndrome gradually decreased,and the proportion of both qi and yin deficiency syndrome gradually increased.Conclusions:Patients with COVID-19 in convalescence had symptoms and lung inflammation after hospital discharge and recovered with time prolonging.CM could improve lung inflammation for early recovery.The types of CM syndrome can be transformed with time prolonging.  相似文献   
23.
Objectives To validate the reliability of the Chinese version of the Consultation and Relational Empathy (CARE) in physician-standardized patient (SP) encounter. We also tried to examine the agreement between video-based ratings and in-room ratings, as well as the agreement between the faculty ratings and SP ratings. Methods The CARE was translated into Chinese. Forty-eight anesthesia residents were recruited to make preoperative interview in SP-counter. Performance of each resident was graded by in-room raters, video raters and SP raters. Consistency between different raters was examined. Results The Chinese-CARE measure demonstrated high scale reliability with a Cronbach's alpha value of 0.95 and high consistency in the in-room ratings in intraclass correlation (coefficient=0.888, P<0.001). Despite a good consistency in intraclass correlation, video ratings were significantly higher than in-room ratings (39.6±7.1 vs. 24.0±10.0, P<0.001), and Wilcoxon signed-rank test indicated that the pass/fail rate was significantly higher based on video ratings than based on in-room ratings (45/48 vs. 22/48, P<0.001). SP ratings had a moderate consistency with in-room faculty ratings (coefficient=0.568, P<0.001), and there was no significant difference between the pass/fail rates based on the in-room ratings and SP ratings (22/48 vs. 28/48, P=0.12). Conclusions The Chinese-CARE measure is reliable in the assessment of empathy during preoperative anesthesia interview. In-room and video ratings are not equivalent, while SP may provide a feasible alternative for the faculty rater in the assessment of communication skills with an appropriate measure.  相似文献   
24.
ObjectiveDiane Forsythe and other feminist scholars have long shown how system builders’ tacit assumptions lead to the systematic erasure of certain users from the design process. In spite of this phenomena being known in the health informatics literature for decades, recent research shows how patient portals and electronic patients health records continue to reproduce health inequalities in Western societies. To better understand this discrepancy between scholarly awareness of such inequities and mainstream design, this study unravels the (conceptual) assumptions and practices of designers and others responsible for portal implementation in the Netherlands and how citizens living in vulnerable circumstances are included in this process.Materials and methodsWe conducted semistructured interviews (n = 24) and questionnaires (n = 14) with portal designers, health professionals, and policy advisors.ResultsIn daily design practices, equity is seen as an “end-of-the-pipeline” concern. Respondents identify health care professionals rather than patients as their main users. If patients are included in the design, this generally entails patients in privileged positions. The needs of citizens living in vulnerable circumstances are not prioritized in design processes. Developers legitimize their focus with reference to the innovation-theoretical approach of the Diffusion of Innovations.Discussion and conclusionAlthough feminist scholars have developed important understandings of the exclusion of citizens living in vulnerable circumstances from portal design, other academic efforts have profoundly shaped daily practices of portal development. Diane Forsythe would likely have taken up this discrepancy as a challenge by finding ways to translate these insights into mainstream systems design.  相似文献   
25.
26.
目的:探讨高危肾盂癌患者的治疗方法。方法:自2009年7月~2012年12月对14例高龄且伴有严重并发症的肾盂癌患者行经腹膜后途径腹腔镜下肾脏+中上段输尿管切除术,术后正规膀胱灌注表柔比星注射液,以预防再发膀胱癌,并定期进行影像学及膀胱镜检查。结果:14例手术全部成功,手术时间63~105min,平均78.3min。术后24~48小时恢复饮食,5~9天出院。术后病理检查2例为鳞状细胞癌,12例为尿路上皮细胞癌;其中2例为浸润性肾盂癌伴肾门处淋巴结转移。术后13例得到随访,1例失访;随访8~36个月,平均21.4个月。1例术后13个月死于肺部转移,2例术后21个月因心肺疾病死亡;2例术后再发膀胱癌,行根治性全膀胱切除。结论:对于高危肾盂癌患者,简化手术,腹腔镜下切除肾脏+中上段输尿管,术后配合正规膀胱灌注化疗是一种有效安全的治疗方法。  相似文献   
27.
In our experience patients undergoing circumcision are mostly concerned about pain and penile appearances. We conducted a prospective randomized trial to assess the benefits of a new disposable circumcision suture device (DCSD). A total of 942 patients were equally divided into three groups (conventional circumcision, Shang ring and disposable suture device group). Patients in the DCSD group were anesthetized with compound 5% lidocaine cream, the others with a 2% lidocaine penile block. Operation time, intra-operative blood loss, incision healing time, intra-operative and post-operative pain, the penile appearance and overall satisfaction degree were measured. Operation time and intra-operative blood loss were significantly lower in the Shang ring and suture device groups compared to the conventional group (P 〈 0.001). Intra-operative pain was less in the suture device group compared With the other two groups (P 〈 0.001); whereas post-operative pain was higher in the conventional group compared to the other two groups (P 〈 0.001). Patients in the suture device (80.57%) and Shang ring (73,57%) groups were more satisfied with penile appearances compared with the conventional circumcision group (20.06%, P 〈 0.05). Patients in suture device group also healed markedly faster than the conventional group (P 〈 0.01). The overall satisfaction rate was better in the suture device group (78.66%) compared with the conventional (47.13%) and Shang ring (50.00%) groups (P 〈 0.05). The combination of DCSD and lidocaine cream resulted in shorter operation and incision healing times, reduced intra-operative and post-operative pain and improved patient satisfaction with the cosmetic appearances.  相似文献   
28.
Summary The concept of an automated nursing documentation system has been subject to casual debate for a number of years. During this time, Hewlett-Packard developed a system that is both adequate and workable from many perspectives (i.e. the Staff Notes Subsystem of the Patient Data Management System — PDMS). This package has been used as the primary method to document patient care for six years in the Critical Care Units of Phoenix Baptist Hospital. With the aid of Baptist Hospitals and Health Systems (BHHS) Design Engineers, it continues to evolve predicated on a singular intent: To provide the type of documentation required by the medical staff.The objective of this paper is multifold. Foremost, generalized criteria are established to provide a vehicle for standardizing the design or evolution of a staff notes package. The generic structure of the PDMS notes subsystem is discussed in regard to its parity with these criteria. Finally, custom modifications and additions to this package will be presented, and recommendations for future enhancements will be outlined.  相似文献   
29.
We present a series of three postoperative cases that were admitted to a cardiothoracic intensive care unit (ICU) after major surgery. Due to the possible presence of residual postoperative neuromuscular blockade after surgery, a processed electroencephalograph (EEG) was applied prior to starting sedation. This was markedly abnormal in all three cases, and not in keeping with the residual anesthesia. The patients were immediately transported for a CT scan. In all three cases there was severe neurological injury incompatible with survival and end of life decisions were made. Although the utility of quantitative EEG technology, like the Bispectral index (BIS) or Patient State Analyzer (PSA), is becoming better defined in the operating room, the role in the ICU is less clear. We propose that the ICU use of the PSA 4000 may have affected our decision weighing the risk versus benefit of transporting a fresh postoperative case to the radiology suite, expedited the neurological diagnosis, and may have reduced overall ICU resource utilization.  相似文献   
30.
刍议护理语言的应用及作用   总被引:9,自引:0,他引:9  
张宝芹 《护理研究》2005,19(7):565-567
从临床护理语言在疾病康复中的作用出发 ,探讨了护士的社会角色、融洽护患关系等问题。提出临床护理语言是一个广义的概念 ,护患沟通中语言交流与非语言交流同等重要 ,是影响病人身体康复的重要社会因素。  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