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   64759篇
  免费   4644篇
  国内免费   285篇
耳鼻咽喉   637篇
儿科学   2378篇
妇产科学   1713篇
基础医学   9862篇
口腔科学   1128篇
临床医学   6558篇
内科学   14113篇
皮肤病学   1502篇
神经病学   7066篇
特种医学   1434篇
外科学   5309篇
综合类   384篇
现状与发展   1篇
一般理论   45篇
预防医学   5863篇
眼科学   1053篇
药学   4827篇
中国医学   149篇
肿瘤学   5666篇
  2024年   70篇
  2023年   703篇
  2022年   509篇
  2021年   2630篇
  2020年   1652篇
  2019年   2095篇
  2018年   2270篇
  2017年   1855篇
  2016年   2060篇
  2015年   2303篇
  2014年   2966篇
  2013年   3776篇
  2012年   5584篇
  2011年   5575篇
  2010年   3018篇
  2009年   2588篇
  2008年   4288篇
  2007年   4317篇
  2006年   3950篇
  2005年   3642篇
  2004年   3410篇
  2003年   3044篇
  2002年   2750篇
  2001年   358篇
  2000年   253篇
  1999年   351篇
  1998年   482篇
  1997年   413篇
  1996年   224篇
  1995年   256篇
  1994年   244篇
  1993年   203篇
  1992年   138篇
  1991年   129篇
  1990年   88篇
  1989年   102篇
  1988年   102篇
  1987年   88篇
  1986年   73篇
  1985年   79篇
  1984年   109篇
  1983年   93篇
  1982年   94篇
  1981年   82篇
  1980年   77篇
  1979年   38篇
  1978年   44篇
  1977年   56篇
  1976年   31篇
  1974年   29篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Journal of Behavioral Medicine - Evidence supports the use of graphic warnings to educate the public about the health harms of smoking and suggests warnings eliciting negative emotional responses...  相似文献   
3.
4.
Forgiveness has been found one substantial element in the recovery for women survivors from intimate partner violence following the termination of the abusive relationship. To further investigate the details of forgiveness in this specific context, the present study explored the process of forgiveness using grounded theory. In-depth and semi-structured interviews were conducted with 25 Chinese women survivors of IPV. The findings suggest that forgiveness is a strength-based process including empowerment, transformation, and integration phases. In the empowerment phase, survivors obtain strength at the intrapersonal, behavioural, and interpersonal levels. In the transformation phase, survivors complete cognitive transformation for their IPV experiences and emotional transformation towards former partners. In the integration phase, survivors—now freed from the past—reflect upon and apply the changes they have undergone. Two trajectories in the process were found. One trajectory is going through stages sequentially and the other trajectory is experiencing back and forth between empowerment and transformation stages before moving into the integration stage. The study's findings broaden our knowledge of the strength-based forgiveness process that women survivors of IPV undergo during recovery. Practitioners and policymakers could develop programmes and policies that support forgiveness by holistically facilitating their recovery and empowerment like assistance in dealing with life difficulties and promoting their reconnection with social networks. To improve the transferability and validity of the findings, the forgiveness of survivors of IPV could be explored in a diverse sample (e.g., survivors with low educational background or live in the rural area).  相似文献   
5.
6.
7.
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   
8.
Background: Extracellular matrix molecular components, previously linked to multisystem syndromes include collagens, fibrillins and laminins. Recently, we described a novel multisystem syndrome caused by the c.9418G>A p.(V3140M) mutation in the laminin alpha-5 (LAMA5) gene, which affects connective tissues of all organs and apparatus in a three generation family. In the same family, we have also reported a myopic trait, which, however, was linked to the Prolyl 4-hydroxylase subunit alpha-2 (P4HA2) gene. Results of investigation on vitreous changes and their pathogenesis are reported in the present study.Materials and Methods: Nineteen family individuals underwent complete ophthalmic examination including best-corrected visual acuity (BCVA), fundus examination, fundus photography, intraocular pressure measurement, axial length measurement using ocular biometry, Goldmann visual field examination, standard electroretinogram, SD-OCT. Segregation analysis of LAMA5 and P4HA2 mutations was performed in enrolled members.Results: The vitreous alterations fully segregated with LAMA5 mutation in both young and adult family members. Slight reduction of retinal thickness and peripheral retinal degeneration in only two patients were reported.Conclusions: In this work we showed that PVD is a common trait of LAMA5 multisystem syndrome, therefore occurring as an age-unrelated trait. We hypothesize that the p.(V3140M) mutation results in a reduction of retinal inner limiting membrane (ILM) stability, leading to a derangement in the macromolecular structure of the vitreous gel, and PVD. Further investigations will be necessary to elucidate the role of wild type and mutated LAMA5 in the pathogenesis of PVD.  相似文献   
9.
10.

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   
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