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   132948篇
  免费   7433篇
  国内免费   1607篇
耳鼻咽喉   1738篇
儿科学   3564篇
妇产科学   4564篇
基础医学   20406篇
口腔科学   3849篇
临床医学   10171篇
内科学   24735篇
皮肤病学   2663篇
神经病学   9137篇
特种医学   4581篇
外国民族医学   3篇
外科学   18549篇
综合类   5262篇
一般理论   37篇
预防医学   9813篇
眼科学   3210篇
药学   11369篇
中国医学   848篇
肿瘤学   7489篇
  2021年   1316篇
  2019年   1246篇
  2018年   1901篇
  2017年   1421篇
  2016年   1482篇
  2015年   1755篇
  2014年   2292篇
  2013年   2975篇
  2012年   4245篇
  2011年   4548篇
  2010年   2706篇
  2009年   2376篇
  2008年   3862篇
  2007年   4098篇
  2006年   4076篇
  2005年   3676篇
  2004年   3507篇
  2003年   3273篇
  2002年   3151篇
  2001年   7093篇
  2000年   7269篇
  1999年   6043篇
  1998年   1955篇
  1997年   1477篇
  1996年   1024篇
  1992年   3948篇
  1991年   3997篇
  1990年   3755篇
  1989年   3738篇
  1988年   3602篇
  1987年   3452篇
  1986年   3284篇
  1985年   3132篇
  1984年   2192篇
  1983年   1909篇
  1982年   1061篇
  1979年   2083篇
  1978年   1293篇
  1977年   1086篇
  1976年   1027篇
  1975年   1321篇
  1974年   1518篇
  1973年   1562篇
  1972年   1495篇
  1971年   1386篇
  1970年   1295篇
  1969年   1247篇
  1968年   1177篇
  1967年   1047篇
  1966年   948篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
BackgroundThe measurement of health-related quality of life (HRQoL) provides information about the perceived burden of the health condition and treatments from a lived experience. The Brisbane Burn Scar Impact Profile (caregiver report for young children, BBSIP0–8), developed in 2013, is a proxy-report measure of burn scar-specific HRQoL. The aim of this study was to report its psychometric properties in line with an evaluative purpose.MethodsCaregivers of children up to 8 years of age at risk of burn scarring were recruited into a prospective, longitudinal cohort study. Caregivers completed the BBSIP0–8, Pediatric Quality of Life Inventory and Patient Observer Scar Assessment Scale at baseline (approximately ≥85% of the total body surface area re-epithelialised), 1–2 weeks after baseline and 1-month after baseline. Psychometric properties measured included internal consistency, test–retest reliability, validity and responsiveness.ResultsEighty-six caregivers of mostly male children (55%), of a median age (IQR) of 1 year, 10 months (2 years, 1 month) and total body surface area burn of 1.5% (3.0%) were recruited. Over one third of participants were grafted and 15% had contractures or skin tightness at baseline. Internal consistency of ten item groups ranged from 0.73 to 0.96. Hypothesised correlations of changes in the BBSIP0–8 items with changes in criterion measures supported longitudinal validity (ρ ranging from ?0.73 to 0.68). The majority of item groups had acceptable reproducibility (ICC = 0.65–0.83). The responsiveness of five item groups was supported (AUC = 0.71–0.90).ConclusionThe psychometric properties tested support the use of the BBSIP0–8 as an evaluative measure of burn scar-related health-related quality of life for children aged below eight years in the early post-acute period of rehabilitation. Further investigation at longer time period after burn injury is indicated.  相似文献   
6.
7.
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   
8.
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   
9.
Clinical Oral Investigations - The aim of this study was the analysis of WNT10A variants in seven families of probands with various forms of tooth agenesis and self-reported family history of...  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