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   5059篇
  免费   582篇
  国内免费   18篇
耳鼻咽喉   37篇
儿科学   178篇
妇产科学   127篇
基础医学   752篇
口腔科学   84篇
临床医学   589篇
内科学   931篇
皮肤病学   54篇
神经病学   446篇
特种医学   201篇
外科学   571篇
综合类   117篇
一般理论   9篇
预防医学   735篇
眼科学   88篇
药学   353篇
中国医学   16篇
肿瘤学   371篇
  2021年   74篇
  2020年   49篇
  2019年   61篇
  2018年   92篇
  2017年   70篇
  2016年   90篇
  2015年   80篇
  2014年   110篇
  2013年   181篇
  2012年   211篇
  2011年   229篇
  2010年   125篇
  2009年   126篇
  2008年   238篇
  2007年   240篇
  2006年   199篇
  2005年   212篇
  2004年   195篇
  2003年   196篇
  2002年   162篇
  2001年   164篇
  2000年   158篇
  1999年   118篇
  1998年   64篇
  1997年   63篇
  1996年   64篇
  1995年   64篇
  1994年   60篇
  1993年   70篇
  1992年   135篇
  1991年   123篇
  1990年   136篇
  1989年   93篇
  1988年   106篇
  1987年   119篇
  1986年   90篇
  1985年   119篇
  1984年   84篇
  1983年   66篇
  1982年   38篇
  1981年   37篇
  1980年   37篇
  1979年   57篇
  1978年   39篇
  1975年   58篇
  1974年   55篇
  1973年   45篇
  1972年   35篇
  1971年   39篇
  1970年   38篇
排序方式: 共有5659条查询结果,搜索用时 15 毫秒
1.
Objective Consensus that enhanced teamwork is necessary for efficient and effective primary care delivery is growing. We sought to identify how electronic health records (EHRs) facilitate and pose challenges to primary care teams as well as how practices are overcoming these challenges.Methods Practices in this qualitative study were selected from those recognized as patient-centered medical homes via the National Committee for Quality Assurance 2011 tool, which included a section on practice teamwork. We interviewed 63 respondents, ranging from physicians to front-desk staff, from 27 primary care practices ranging in size, type, geography, and population size.Results EHRs were found to facilitate communication and task delegation in primary care teams through instant messaging, task management software, and the ability to create evidence-based templates for symptom-specific data collection from patients by medical assistants and nurses (which can offload work from physicians). Areas where respondents felt that electronic medical record EHR functionalities were weakest and posed challenges to teamwork included the lack of integrated care manager software and care plans in EHRs, poor practice registry functionality and interoperability, and inadequate ease of tracking patient data in the EHR over time.Discussion Practices developed solutions for some of the challenges they faced when attempting to use EHRs to support teamwork but wanted more permanent vendor and policy solutions for other challenges.Conclusions EHR vendors in the United States need to work alongside practicing primary care teams to create more clinically useful EHRs that support dynamic care plans, integrated care management software, more functional and interoperable practice registries, and greater ease of data tracking over time.  相似文献   
2.
A total of 42 patients with recurrent superficial bladder tumors or carcinoma in situ entered a prospective, randomized trial to compare the efficacy of bacillus Calmette-Guerin therapy with and without quarterly maintenance instillations of bacillus Calmette-Guerin. Maintenance therapy did not reduce further bladder tumor recurrence rates or the interval to recurrence in patients who responded to the initial course of therapy. However, prolongation of toxicity was observed with maintenance bacillus Calmette-Guerin therapy.  相似文献   
3.
4.
5.
The original article to which this Erratum refers was published in Pharmacoepidemiology and Drug Safety 2005; 14: 239–247.  相似文献   
6.
The use of trichloracetic acid in the treatment of decorative tattoos is described. The technique is simple to perform. No anaesthesia or analgesia is required. Complications are uncommon and usually minor. Trichloracetic acid acts by inflicting a chemical burn.  相似文献   
7.
8.
9.
Site selection for fat autotransplantation: Some observations   总被引:4,自引:0,他引:4  
The use of autologous fat for implantation has recently received renewed attention in the plastic surgery literature. Autologous fat reportedly has been used for the treatment of wrinkles and Romberg's disease, and for buttock and breast augmentation. While some measure of success has been achieved, many surgeons report that substantial resorption of fat tissue occurs at the site of implantation. There is lack of unanimity regarding the ideal site for extraction or injection in order to minimize fat resorption. Adipose tissue samples were taken from women undergoing surgical procedures on the abdomen, gluteal-femoral region, and breast. Facial adipose tissue samples from men and women were also analyzed. Adipocytes were isolated chemically and sized microscopically. Activity of the lipogenic enzyme adipose tissue lipoprotein lipase (ATLPL) was measured in frozen samples. Results suggest that femoral site samples are somewhat larger (NS) and have greater lipogenic activity (p<0.03) than other sites. In our study, small facial samples had very low or unmeasurable levels of ATLPL activity. Perhaps cell size and lipogenic activity should be considered when selecting tissues for autotransplantation.  相似文献   
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