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   194篇
  免费   20篇
耳鼻咽喉   2篇
儿科学   7篇
妇产科学   1篇
基础医学   9篇
临床医学   19篇
内科学   30篇
神经病学   15篇
特种医学   3篇
外科学   11篇
综合类   35篇
预防医学   41篇
眼科学   1篇
药学   26篇
中国医学   8篇
肿瘤学   6篇
  2023年   4篇
  2022年   2篇
  2021年   5篇
  2020年   9篇
  2019年   12篇
  2018年   16篇
  2017年   13篇
  2016年   4篇
  2015年   7篇
  2014年   9篇
  2013年   18篇
  2012年   15篇
  2011年   13篇
  2010年   11篇
  2009年   6篇
  2008年   7篇
  2007年   11篇
  2006年   9篇
  2005年   4篇
  2004年   5篇
  2003年   5篇
  2002年   3篇
  2001年   1篇
  2000年   1篇
  1999年   1篇
  1996年   1篇
  1995年   4篇
  1994年   10篇
  1993年   1篇
  1992年   1篇
  1984年   2篇
  1982年   1篇
  1980年   2篇
  1973年   1篇
排序方式: 共有214条查询结果,搜索用时 15 毫秒
11.
12.
13.
This paper is intended to offer a foundation for comparison of the approaches of Wilfred Bion and Donald Winnicott. In particular, I try to plot the oscillation of Bion's clinical method from his early Group period at the Tavistock Clinic (up to around 1950) when he emphasized countertransference; his part‐object interpretation method in the 1950s after his analysis with Klein when he and colleagues were experimenting with the psychoanalysis of people in psychotic states (1953–59); and then his return to his investigation of the intuitive approach to clinical data, around 1965–70.  相似文献   
14.
15.
16.
Alveolar soft part sarcoma is a rare, aggressive malignancy of uncertain histologic origin and enigmatic clinical behaviour. It has a characteristic histopathological picture, with a propensity for vascular invasion and distant metastasis. We report a case of alveolar soft part sarcoma involving the tongue base in an adolescent female. She underwent laser assisted excision of the tongue base tumour followed by post-operative radiotherapy. The clinical presentation, histopathological picture, immunohistochemical & cytogenetic studies, radio-imaging, management protocols and prognosis of this tumor have been discussed.  相似文献   
17.
18.
OBJECTIVES: To evaluate medication use, out‐of‐pocket spending, and medication switching during the transition period for patients dually eligible for Medicaid and Medicare (dual eligibles). DESIGN: Time‐trend analysis, using segmented linear regression. SETTING: Patient‐level pharmacy dispensing data from January 2005 to December 2006 from a large pharmacy chain with stores in 34 states. PARTICIPANTS: Dual eligibles aged 65 and older. MEASUREMENTS: Changes in utilization, patient copayments, and medication switching were analyzed using interrupted time trend analyses. Utilization and spending were evaluated for five study drugs: clopidogrel, proton pump inhibitors (PPIs), warfarin, and statins (essential drugs covered by Part D plans) and benzodiazepines (not covered through Part D but potentially covered through Medicaid). RESULTS: Drug use for 13,032 dual eligibles was evaluated. There was no significant effect of the transition to Medicare Part D on use of all study drugs, including the uncovered benzodiazepines. Cumulative reductions were seen in copayments for all covered drugs after implementation of Part D, ranging from 25% annually for PPIs to 53% for warfarin, but there was a larger increase in copayments, 91% annually, for benzodiazepines after the transition. The rate of switching medications was 3.0 times as great for the PPIs after implementation of Part D than before implementation, but there was no significant change in the other study drug classes. CONCLUSION: These findings in a single, large pharmacy chain indicate that the transition plan for dual eligibles led to less medication discontinuation and switching than many had expected. The substantially greater cost sharing for benzodiazepines highlights the importance of implementing a thoughtful transition plan when executing such a national policy.  相似文献   
19.
《Academic pediatrics》2023,23(5):904-912
ObjectivePart C Early Intervention (EI) services have been shown to reduce autism symptoms and promote healthy development among young children. However, EI participation remains low, particularly among children from structurally marginalized communities. We investigated whether family navigation (FN) improved EI initiation following positive primary care screening for autism compared to conventional care management (CCM).MethodsWe conducted a randomized clinical trial among 339 families of children (ages 15–27 months) who screened as having an increased likelihood for autism at 11 urban primary care sites in 3 cities. Families were randomized to FN or CCM. Families in the FN arm received community-based outreach from a navigator trained to support families to overcome structural barriers to autism evaluation and services. EI service records were obtained from state or local agencies. The primary outcome of this study, EI service participation, was measured as the number of days from randomization to the first EI appointment.ResultsEI service records were available for 271 children; 156 (57.6%) children were not engaged with EI at study enrollment. Children were followed for 100 days after diagnostic ascertainment or until age 3, when Part C EI eligibility ends; 65 (89%, 21 censored) children in the FN arm and 50 (79%, 13 censored) children in the CCM arm were newly engaged in EI. In Cox proportional hazards regression, families receiving FN were approximately 54% more likely to engage EI than those receiving CCM (1.54 (95% confidence interval: 1.09–2.19), P = .02).ConclusionsFN improved the likelihood of EI participation among urban families from marginalized communities.  相似文献   
20.
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