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   153499篇
  免费   9635篇
  国内免费   876篇
耳鼻咽喉   1525篇
儿科学   5147篇
妇产科学   3648篇
基础医学   22381篇
口腔科学   4634篇
临床医学   14278篇
内科学   34576篇
皮肤病学   3738篇
神经病学   15577篇
特种医学   3473篇
外国民族医学   1篇
外科学   13506篇
综合类   679篇
现状与发展   1篇
一般理论   89篇
预防医学   15195篇
眼科学   2519篇
药学   11036篇
中国医学   544篇
肿瘤学   11463篇
  2024年   201篇
  2023年   1602篇
  2022年   3456篇
  2021年   5769篇
  2020年   3506篇
  2019年   4662篇
  2018年   5207篇
  2017年   4059篇
  2016年   4625篇
  2015年   5086篇
  2014年   6667篇
  2013年   8595篇
  2012年   12898篇
  2011年   13265篇
  2010年   7187篇
  2009年   6038篇
  2008年   10373篇
  2007年   10323篇
  2006年   9502篇
  2005年   8795篇
  2004年   7970篇
  2003年   7095篇
  2002年   6360篇
  2001年   775篇
  2000年   556篇
  1999年   847篇
  1998年   1078篇
  1997年   894篇
  1996年   707篇
  1995年   611篇
  1994年   579篇
  1993年   468篇
  1992年   371篇
  1991年   278篇
  1990年   257篇
  1989年   258篇
  1988年   241篇
  1987年   207篇
  1986年   212篇
  1985年   169篇
  1984年   205篇
  1983年   197篇
  1982年   230篇
  1981年   174篇
  1980年   187篇
  1979年   105篇
  1978年   115篇
  1977年   116篇
  1976年   86篇
  1975年   84篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
13.
Abstract

Supporting patients in making informed healthcare decisions is a cornerstone of ethical medical practice. Surgeons frequently draw for and show images to patients when consenting them for operations but the value of this practice in informed decision-making is unclear. An audit was conducted in a General Surgery Department. 244 patients completed questionnaires on the value of visual materials when giving consent for surgery. The complexity of the operations was classified into “simple”, “moderate” or “complex”. 100% of patients felt they had given informed consent to surgery. 62% of patients received at least one form of visual material during the consenting process. All patients who received a drawing, and 99% of those provided with other images, valued these resources. Visual materials were considered more useful to patients when giving consent for moderate or complex operations than simple ones. Approximately one third of patients who did not receive visual materials would have appreciated these when making an informed decision. This research highlights the value of surgeons drawing for, and providing other visual resources to, their patients as part of the consent process. There is a role for further research and training materials in drawing skills for surgeons.  相似文献   
14.

Rates of mental illness have increased dramatically over the past 15 years in the United States [Products—Data Briefs—Number 283—August 2017. Centers for Disease Control and Prevention. https://www.cdc.gov/nchs/products/databriefs/db283.htm. Published August 15, 2017]. Additionally, life expectancy has fallen over the past several years due to increases in death from suicide, opioid overdose, and alcoholic liver cirrhosis as reported by Case and Deaton [Deaths of despair and the future of capitalism. Princeton University Press, 2020]. Over the last decade some have questioned whether these changes are due to neoliberal capitalist policies and ideologies. Neoliberal capitalism incorporates theories of eliminating all restrictions on the market and decreasing government assistance programs as reported by Harvey [A brief history of neoliberalism, Oxford University Press, 2005]. Since then these policies have led to income inequality, disempowerment of workers, outsourcing of manufacturing jobs, inadequate social services, mass incarceration and an expensive and ineffective healthcare system as reported by Case and Deaton [Deaths of despair and the future of capitalism. Princeton University Press, 2020] and Nkansah-Amankra et al. [International Journal of Health Services 43(2):217-240, 2013]. Studies have shown that the consequences of these policies and ideologies likely have a role in increasing rates of mental illness. This paper will discuss how these factors increase mental distress and postulate ways that mental health professionals can advocate for change.

  相似文献   
15.
16.
17.
18.
19.
Gangliocytic paragangliomas are rare tumors that almost exclusively occur within the second portion of the duodenum. Although these tumors generally have a benign clinical course, they have the potential to recur or metastasize to regional lymph nodes. The case report presented here describes a 57-year-old female patient with melena, progressive asthenia, anemia, and a mass in the second-third portion of the duodenum that was treated by local excision. The patient was diagnosed with a friable bleeding tumor. The histologic analysis showed that the tumor was a 4 cm gangliocytic paraganglioma without a malignant cell pattern. In the absence of local invasion or distant metastasis, endoscopic resection represents a feasible, curative therapy. Although endoscopic polypectomy is currently considered the treatment of choice, it is not recommended if the size of the tumor is > 3 cm and/or there is active or recent bleeding. Patients diagnosed with a gangliocytic paraganglioma should be closely followed-up for possible local recurrence.  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