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   1781091篇
  免费   127968篇
  国内免费   4780篇
耳鼻咽喉   22977篇
儿科学   57831篇
妇产科学   49295篇
基础医学   254300篇
口腔科学   51596篇
临床医学   157828篇
内科学   348675篇
皮肤病学   40442篇
神经病学   136956篇
特种医学   66741篇
外国民族医学   244篇
外科学   269147篇
综合类   42573篇
现状与发展   4篇
一般理论   563篇
预防医学   130749篇
眼科学   42349篇
药学   130827篇
  7篇
中国医学   5039篇
肿瘤学   105696篇
  2021年   13512篇
  2019年   14265篇
  2018年   21045篇
  2017年   15972篇
  2016年   17377篇
  2015年   19912篇
  2014年   27476篇
  2013年   39647篇
  2012年   55213篇
  2011年   58060篇
  2010年   34370篇
  2009年   32098篇
  2008年   53875篇
  2007年   57351篇
  2006年   57799篇
  2005年   54801篇
  2004年   52898篇
  2003年   50124篇
  2002年   48219篇
  2001年   96145篇
  2000年   98106篇
  1999年   80726篇
  1998年   21076篇
  1997年   18293篇
  1996年   18023篇
  1995年   17321篇
  1994年   15823篇
  1993年   14604篇
  1992年   59972篇
  1991年   57906篇
  1990年   55493篇
  1989年   53272篇
  1988年   48575篇
  1987年   47284篇
  1986年   44419篇
  1985年   42151篇
  1984年   30835篇
  1983年   26230篇
  1982年   14632篇
  1979年   27004篇
  1978年   18487篇
  1977年   15656篇
  1976年   14603篇
  1975年   15508篇
  1974年   18737篇
  1973年   18051篇
  1972年   16765篇
  1971年   15485篇
  1970年   14346篇
  1969年   13457篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
91.
92.
Graefe's Archive for Clinical and Experimental Ophthalmology -  相似文献   
93.
94.
95.
96.
IntroductionInterprofessional learning (IPL) is a vital aspect of training in radiation oncology professions, yet is rarely delivered to those professionals who work most closely together in clinical practice. Scenario-based learning using simulation facilities provides a unique opportunity to facilitate this learning and this project aimed to determine the impact and value of this initiative.MethodsSmall groups comprising post-graduate diploma pre-registration therapeutic radiographers, medical physics trainees and radiation oncology registrars were challenged with 4 plausible and challenging radiotherapy scenarios within an academic simulation centre. Pre- and post-event completion of the “Readiness for Interprofessional Learning Scale” measured impact and a Likert-style survey gathered feedback from participants.ResultsThe session increased participants' teamwork and collaboration skills as well as strengthening professional identities. Participants reported high levels of enjoyment related to collaborative working, communication and observing other professionals deploying their technical skills and specialist knowledge.ConclusionAlthough beneficial, simulated scenarios offering equal opportunities for engagement across the professions are challenging to plan and timetabling issues between the 3 groups present significant difficulties. The safe environment and unique opportunity for these groups to learn together was particularly well received and future oncology-specific simulated scenario sessions are planned with larger cohorts.Implications for practiceSimulated scenario training can be used to improve team working across the radiotherapy interprofessional team and may have wider use in other specialist interdisciplinary team development.  相似文献   
97.
Pseudoaneurysms in the external carotid artery system are rare, mostly reported in the superficial temporal and facial arteries. The bilateral sagittal split osteotomy has a low incidence of complications requiring emergency interventions. We report the case of a patient with acute bleeding from a pseudoaneurysm of the inferior alveolar artery diagnosed by angiography and treated successfully by super-selective embolization.  相似文献   
98.
A local pedicled vascularized bone flap can prevent the morbidity and cost of free bone flap surgery in small segmental bone defects or long cartilaginous defects of the head and neck. Such flaps can also be useful in patients who are high risk for surgery. The periosteal vascularity of the mandible can be used to design islanded facial artery-based bone flaps, which can be utilized to that extent. Two patients with a small segmental mandibulectomy defect and one patient with a long cricotracheal resection defect underwent reconstruction using three different designs of islanded facial artery osteomyomucosal/osseous flap (iFOMM). The patients had a minimum follow-up period of 18 months. All flaps were successful, with satisfactory healing and without any functional deficit or disease at last follow-up.  相似文献   
99.
100.
Background  The data visualization literature asserts that the details of the optimal data display must be tailored to the specific task, the background of the user, and the characteristics of the data. The general organizing principle of a concept-oriented display is known to be useful for many tasks and data types. Objectives  In this project, we used general principles of data visualization and a co-design process to produce a clinical display tailored to a specific cognitive task, chosen from the anesthesia domain, but with clear generalizability to other clinical tasks. To support the work of the anesthesia-in-charge (AIC) our task was, for a given day, to depict the acuity level and complexity of each patient in the collection of those that will be operated on the following day. The AIC uses this information to optimally allocate anesthesia staff and providers across operating rooms. Methods  We used a co-design process to collaborate with participants who work in the AIC role. We conducted two in-depth interviews with AICs and engaged them in subsequent input on iterative design solutions. Results  Through a co-design process, we found (1) the need to carefully match the level of detail in the display to the level required by the clinical task, (2) the impedance caused by irrelevant information on the screen such as icons relevant only to other tasks, and (3) the desire for a specific but optional trajectory of increasingly detailed textual summaries. Conclusion  This study reports a real-world clinical informatics development project that engaged users as co-designers. Our process led to the user-preferred design of a single binary flag to identify the subset of patients needing further investigation, and then a trajectory of increasingly detailed, text-based abstractions for each patient that can be displayed when more information is needed.  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