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   1305篇
  免费   135篇
  国内免费   52篇
耳鼻咽喉   14篇
儿科学   23篇
妇产科学   10篇
基础医学   193篇
口腔科学   37篇
临床医学   105篇
内科学   286篇
皮肤病学   31篇
神经病学   27篇
特种医学   90篇
外科学   138篇
综合类   72篇
预防医学   77篇
眼科学   21篇
药学   101篇
中国医学   6篇
肿瘤学   261篇
  2023年   15篇
  2022年   24篇
  2021年   46篇
  2020年   35篇
  2019年   28篇
  2018年   55篇
  2017年   32篇
  2016年   39篇
  2015年   41篇
  2014年   47篇
  2013年   53篇
  2012年   69篇
  2011年   91篇
  2010年   70篇
  2009年   38篇
  2008年   64篇
  2007年   98篇
  2006年   65篇
  2005年   42篇
  2004年   57篇
  2003年   56篇
  2002年   47篇
  2001年   45篇
  2000年   37篇
  1999年   29篇
  1998年   22篇
  1997年   26篇
  1996年   21篇
  1995年   10篇
  1994年   14篇
  1993年   16篇
  1992年   18篇
  1991年   19篇
  1990年   20篇
  1989年   19篇
  1988年   11篇
  1987年   8篇
  1986年   3篇
  1985年   9篇
  1984年   3篇
  1983年   7篇
  1982年   7篇
  1981年   4篇
  1979年   3篇
  1977年   3篇
  1974年   6篇
  1969年   2篇
  1968年   2篇
  1967年   2篇
  1923年   3篇
排序方式: 共有1492条查询结果,搜索用时 15 毫秒
31.
32.
Tanya  Manasita  Teh  Kai Liang  Das  Lena  Hoh  Sook Fun  Gao  Xiaocong  Arkachaisri  Thaschawee 《Clinical rheumatology》2020,39(11):3455-3464
Clinical Rheumatology - To examine the clinical characteristics, treatment and outcomes of juvenile idiopathic arthritis (JIA) patients evaluated in Singapore and compare those with reports...  相似文献   
33.
34.
35.
ObjectiveTo describe the restructuring of services by British radiologists in response to evolving national guidelines and highlight the impact of the COVID-19 pandemic on the treatment of musculoskeletal (MSK) conditions.MethodsAn online anonymised survey was distributed via the British Society of Skeletal Radiology (BSSR) members forum in November 2020. Responses were collated using a standardised Google form including 21 questions.Results135 members of the BSSR completed the survey. 85% of respondents stopped performing corticosteroid injections (CSI) during the initial lockdown of the pandemic. This was primarily influenced by national guidelines. The majority of respondents initially abstained from offered CSI procedures, then by November 2020, 69% of respondents were providing CSI for high and low risk patients, 23% were only providing CSI for low-risk patients with 8% still not performing any CSI. 40% of respondents reported routinely obtaining specific written consent regarding the risk of COVID-19. Approximately, 11,000 CSI were performed by respondents between March and November 2020 with no reported significant COVID-19-related complications. Over 80% of BSSR members reported that the number of CSI procedures that they performed dropped by more than 80% compared to usual. 73% of respondents reported an increased backlog of patients awaiting treatment. The average waiting time for routine outpatient CSI treatment was > 12 weeks in 53% of responses, compared to 34% the previous year.ConclusionThe COVID-19 pandemic has had a significant impact on the clinical practices of MSK radiologists in the UK. Our survey highlights the rapid response of BSSR members as national guidelines evolved. Currently, the majority of respondents are performing CSI for musculoskeletal conditions when clinically indicated, with enhanced consent. However, the pandemic has resulted in increased waiting times – delaying the treatment of patients who may be suffering with significant pain and disability. Further research is warranted to provide guidance around both service recovery and provision of CSI around COVID-19 vaccination schedules.Advances in knowledgeBSSR members responded rapidly to changing guidelines during the COVID-19 pandemic. The majority of respondents are currently performing CSI when clinically indicated. The pandemic has resulted in a significant increase in waiting times which will have a significant impact on UK musculoskeletal services.  相似文献   
36.
37.
38.
OBJECTIVE: Two groups of elderly subjects were studied to see whether patterns of visits to physicians changed after one group received the diagnosis of Alzheimer’s disease. DESIGN: Case—control study. SETTING: Health maintenance organization (HMO). PATIENTS/PARTICIPANTS: Two groups of ambulatory subjects (mean age 77 years) were enrolled from an HMO population for this case—control study: 120 cases had probable Alzheimer’s disease diagnosed at enrollment, and another 120 cognitively intact controls with similar comorbidity were enrolled after being frequency-matched for age and gender. Exclusion criteria were nursing home admission and death during the study period. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Medical records were examined for a four-year period: two years prior to and two years following enrollment and diagnosis. Physician visits declined slightly after enrollment for the persons receiving the diagnosis of Alzheimer’s disease [17.5/2 years prior vs 16.5/2 years after (NS)], whereas visits increased over time for the controls [13.7/2 vs 16.3/2 (p<0.05)], hence the rates were similar after enrollment [16.5 vs 16.3 (NS)]. The proportion of subjects with fewer visits during the period after enrollment was higher among the cases than it was among the controls [54% vs 37%; odds ratio =2.0 (95% confidence interval =1.6, 3.1)]. Hospitalizations and emergency department use did not change significantly after enrollment. CONCLUSIONS: Physician visit frequency was high before, then decreased after, demented patients received their diagnosis, approaching the frequency in a control population without dementia. This phenomenon cannot be accounted for by nursing home placement, comorbidity, or mortality. Increased hospitalization and emergency department use did not ensue after diagnosis.  相似文献   
39.
40.
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