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   4501篇
  免费   422篇
  国内免费   72篇
耳鼻咽喉   24篇
儿科学   65篇
妇产科学   36篇
基础医学   336篇
口腔科学   91篇
临床医学   632篇
内科学   304篇
皮肤病学   60篇
神经病学   430篇
特种医学   70篇
外科学   189篇
综合类   1481篇
一般理论   3篇
预防医学   520篇
眼科学   48篇
药学   330篇
  33篇
中国医学   197篇
肿瘤学   146篇
  2024年   23篇
  2023年   82篇
  2022年   158篇
  2021年   201篇
  2020年   196篇
  2019年   144篇
  2018年   114篇
  2017年   139篇
  2016年   121篇
  2015年   130篇
  2014年   336篇
  2013年   350篇
  2012年   289篇
  2011年   351篇
  2010年   305篇
  2009年   242篇
  2008年   303篇
  2007年   272篇
  2006年   242篇
  2005年   187篇
  2004年   119篇
  2003年   96篇
  2002年   63篇
  2001年   47篇
  2000年   59篇
  1999年   36篇
  1998年   26篇
  1997年   27篇
  1996年   17篇
  1995年   23篇
  1994年   19篇
  1993年   24篇
  1992年   20篇
  1991年   15篇
  1990年   17篇
  1989年   13篇
  1988年   22篇
  1987年   18篇
  1986年   7篇
  1985年   12篇
  1984年   19篇
  1983年   10篇
  1982年   21篇
  1981年   10篇
  1980年   9篇
  1979年   30篇
  1978年   6篇
  1977年   5篇
  1976年   11篇
  1975年   4篇
排序方式: 共有4995条查询结果,搜索用时 15 毫秒
71.
72.
73.
ObjectiveTo provide a platform for learners’ voices at an international conference on communication in healthcare.MethodsA group of medical students were invited to explore their experiences with communication skills learning at a symposium at the 2016 International Conference on Communication in Healthcare in Heidelberg, DE.ResultsStudents from the US, Denmark, Germany, and Russia discussed their experiences with communication skills curriculum at their institutions. We identified divides that have challenged our ability to develop and maintain strong communication skills: 1) valuation of communication skills vs. other topics, 2) curricular theory vs. practice, 3) evaluation vs. feedback, 4) preclinical vs. clinical learning, and 5) the medical student vs. practicing clinician role.ConclusionThe points of transition we identified on the road of communication skills teaching highlight opportunities to strengthen the educational experience for students. Without an effort to address these divides, however, our communication skills may be lost in translation.Practice implicationsStudents value communication skills teaching during their medical education and there are opportunities to translate this to countries that currently lack robust curricula and to the real-life post-graduate setting. Support is necessary from students, teachers, and administrators, and focus on translation of skills during role transitions is needed.  相似文献   
74.
DEBOUT C., CHEVALLIER‐DARCHEN F., PETIT DIT DARIEL O. & ROTHAN‐TONDEUR M. (2012) Undergraduate nursing education reform in France: from vocational to academic programmes. International Nursing Review Background: France is currently implementing a number of reforms to the healthcare and education systems. Within this context, a comprehensive reform of undergraduate nurse education was launched in 2009, bringing nurse education closer to the higher education environment. It is likely in future to move from being vocational towards becoming an academic educational programme. Aim: In this paper, the 2009 reform of the French pre‐registration nursing curriculum will be analysed in light of the European framework. Process: The pedagogical approach, methods and content of nursing education in France are undergoing an in‐depth reorganization. The main innovation that the reforms introduce is a competency‐based approach. France is joining the group of countries that require first degree‐level entry to the nursing profession. Conclusion: There are still many unanswered questions regarding the competencies and qualifications required by both the academic and clinical educators many of whom have not been previously involved in research or publications. The future status of nursing science is unclear, as is the way in which the nursing profession will be able to retain control over its educational mechanisms.  相似文献   
75.
76.
《The Journal of arthroplasty》2021,36(9):3118-3122
BackgroundThis study aimed to assess the baseline levels of D-dimer, C-reactive protein (CRP), and erythrocyte sedimentation rate (ESR) and monitor the natural course of these serum markers after uneventful primary total joint arthroplasty.MethodsThis prospective study enrolled 81 patients undergoing primary total knee arthroplasty or total hip arthroplasty. The level of serum D-dimer, CRP, and ESR was measured preoperatively and on postoperative days 1, 3, 5, 15, and 45. Mean peak values, peak times, and distribution were compared between D-Dimer, CRP, and ESR.ResultsThe mean preoperative serum D-dimer, CRP, and ESR level was 412 ± 260 (range 200-980) ng/mL, 2.93 ± 2.1 (range 1-18) mg/L, and 22.88 ± 17.5 (range 3-102) mm/h, respectively. The highest mean peak for D-dimer, CRP, and ESR was at postoperative day 1, 3, and 5, respectively.ConclusionD-dimer levels reached peak levels on postoperative day 1 and then declined rapidly to a plateau level by postoperative day 3. A second, albeit small, peak in the level of D-dimer occurred on postoperative day 15. The level of CRP and ESR remained elevated for much longer with CRP returning to baseline on postoperative day 45 and the level of ESR had not returned back to normal on postoperative day 45.  相似文献   
77.
Paid employment within clinical setting, such as externships for undergraduate student, are used locally and globally to better prepare and retain new graduates for actual practice and facilitate their transition into becoming registered nurses. However, the influence of paid employment on the post-registration experience of such nurses remains unclear. Through the use of narrative inquiry, this study explores how the experience of pre-registration paid employment shapes the post-registration experience of newly graduated registered nurses. Repeated individual interviews were conducted with 18 new graduates, and focus group interviews were conducted with 11 preceptors and 10 stakeholders recruited from 8 public hospitals in Hong Kong. The data were subjected to narrative and paradigmatic analyses. Taken-for-granted assumptions about the knowledge and performance of graduates who worked in the same unit for their undergraduate paid work experience were uncovered. These assumptions affected the quantity and quality of support and time that other senior nurses provided to these graduates for their further development into competent nurses and patient advocates, which could have implications for patient safety. It is our hope that this narrative inquiry will heighten awareness of taken-for-granted assumptions, so as to help graduates transition to their new role and provide quality patient care.  相似文献   
78.
There still are many clinical and biological aspects of the natural history of cancer of the upper aerodigestive tract to be unveiled; which in Brazil is a direct consequence of the failure of systematic prevention and early diagnosis campaigns.ObjectiveTo analyze the signs and symptoms presented by patients with the disease at initial and advanced stages. Other variables such as disease duration, general and nutritional status were considered.MethodA historical cohort study with a cross-section involving 895 subjects with cancer of the upper aerodigestive tract.ResultsClinical findings were not statistically correlated with disease progression, nor with the disease in early stages, but it showed rapid disease development.ConclusionThe results suggest a disease of insidious onset in the early stages and fast course afterwards. The long disease duration - greater than three months, was associated with worsening in general and nutritional states of patients.  相似文献   
79.
Aim Previous studies have shown significantly lower appendectomy rates in ulcerative colitis (UC) patients compared with healthy controls. Evidence indicating that the appendix has an immunomodulatory role in UC has been accumulating. To examine the latest evidence on the effect of appendectomy on the disease course of UC. Method PubMed, The Cochrane Library and EMBASE were searched. Primary end‐points were number of relapses, use of steroids, number of hospital admissions and number of colectomies. Results The search resulted in six observational studies (five case–control studies and one cohort study) totalling 2532 patients. Owing to clinical heterogeneity, no meta‐analysis could be conducted. One study found lower relapse rates in patients appendectomized before the onset of UC [absolute risk reduction (ARR) = 21.5%; 95% CI: 1.71–45.92%]. Another two studies found a reduced requirement for immunosuppression in appendectomized patients (ARR = 20.2%; 95% CI: 9.67–30.46% in the first study and ARR = 21.4%; 95% CI: 10.32–32.97% in the second study). In addition, one study found lower colectomy rates in nonappendectomized patients (ARR = 8.7%; 95% CI: 1.29–18.66%) and two studies found lower colectomy rates in appendectomized patients (ARR = 21.4%; 95% CI: 13.17–28.79% in the first study and ARR = 18.7%; 95% CI: 7.50–29.97% in the second study). Conclusion There are limited and conflicting data available regarding the effect of appendectomy on the disease course of UC. Most studies suggest a beneficial effect and the minority find no, or a negative, effect.  相似文献   
80.
Objective. To implement and assess a pharmacy dermatology and cosmeceutical compounding elective course and its impact on graduates’ careers.Design. A 3-credit elective course that incorporated classroom lectures on ambulatory dermatologic diseases and cosmeceutical products with case studies, weekly quizzes, and a comprehensive business plan project was implemented in a doctor of pharmacy (PharmD) program in 2010.Assessment. Assessment instruments including weekly quizzes, a business plan project, and pre- and post-course tests were used to evaluate course content. Across 3 offerings of the course (2010, 2011, 2012), pre- and post-course test scores improved. Results of a postgraduate survey showed that 54% of respondents worked at a pharmacy offering compounding services, and 57% felt that the course played a significant or very significant role in their counseling on dermatologic conditions.Conclusions. Assessment methods revealed student learning of course content and the course appeared moderately beneficial to graduates’ early careers. A more longitudinal analysis is needed to assess the course’s impact on long-term career choices, particularly those dealing with compounding of cosmeceutical products.  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