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   30379篇
  免费   2471篇
  国内免费   2427篇
耳鼻咽喉   90篇
儿科学   325篇
妇产科学   1240篇
基础医学   1770篇
口腔科学   619篇
临床医学   2683篇
内科学   7870篇
皮肤病学   1438篇
神经病学   4064篇
特种医学   878篇
外科学   7039篇
综合类   293篇
预防医学   4823篇
眼科学   161篇
药学   841篇
中国医学   9篇
肿瘤学   1134篇
  2018年   279篇
  2017年   424篇
  2016年   1058篇
  2015年   1037篇
  2014年   1288篇
  2013年   2178篇
  2012年   487篇
  2011年   630篇
  2010年   1034篇
  2009年   1487篇
  2008年   598篇
  2007年   573篇
  2006年   1099篇
  2005年   922篇
  2004年   737篇
  2003年   845篇
  2002年   830篇
  2001年   956篇
  2000年   721篇
  1999年   828篇
  1998年   827篇
  1997年   816篇
  1996年   1002篇
  1995年   1147篇
  1994年   963篇
  1993年   843篇
  1992年   882篇
  1991年   777篇
  1990年   642篇
  1989年   619篇
  1988年   588篇
  1987年   629篇
  1986年   507篇
  1985年   614篇
  1984年   538篇
  1983年   453篇
  1982年   463篇
  1981年   431篇
  1980年   406篇
  1979年   387篇
  1978年   355篇
  1977年   348篇
  1976年   276篇
  1975年   229篇
  1974年   217篇
  1973年   182篇
  1972年   147篇
  1968年   151篇
  1967年   164篇
  1966年   131篇
排序方式: 共有10000条查询结果,搜索用时 453 毫秒
11.
Pediatric dermatology is one of the smallest subspecialties, and expanding the availability of care is of great interest. Teledermatology has been proposed as a way to expand access and improve care delivery, but no current assessment of pediatric teledermatology exists. The objective of the current study was to assess usage and perspectives on pediatric teledermatology. Surveys were distributed electronically to all 226 board‐certified U.S. pediatric dermatologists; 44% (100/226) responded. Nearly all respondents (89%) have experience with teledermatology. Formal teledermatology reimbursement success rates have increased to 35%. Respondents were positive about teledermatology's present and future prospects, and 41% want to use teledermatology more often, although they viewed teledermatology as somewhat inferior to in‐person care regarding accuracy of diagnosis and appropriation of management plans. Significant differences were found between formal teledermatology users and nonusers in salary structure, practice environment, sex, and region. Substantial increases in pediatric teledermatology have occurred in the last 5 to 10 years, and there remains cause for optimism for teledermatology's future. Concerns about diagnostic confidence and care quality indicate that teledermatology may be best for care of patients with characteristic clinical presentations or management of patients with established diagnoses.  相似文献   
12.
13.
14.
A 3‐year‐old Arab boy with a history of hypoplastic left heart syndrome was referred to the pediatric dermatology clinic at Sheba Medical Center for evaluation of hypomelanosis, manifested by fair skin pigmentation and silvery‐grey hair, eyebrows, and eyelashes. The child had one older brother with similar hypopigmentation and another older brother who had died of congenital heart disease. The child had no history of neurologic deficits or immunodeficiency and no additional findings on clinical evaluation.  相似文献   
15.
16.
We report on a 3‐year‐old girl with a microvesicular generalized rash in whom primary infection by parvovirus B19 was demonstrated by seroconversion. To our knowledge, this is the first instance of an eruption arising from parvovirus B19 with this peculiar clinical pattern.  相似文献   
17.
Infantile hemangiomas (IHs) are the most common benign tumor of infancy, characterized by a natural history of early proliferation in the first months of life to eventual involution during childhood, often with residual fibrofatty tissue. Once involution has been achieved, IHs do not typically recur. We present two cases of exogenous growth hormone therapy resulting in the recurrence of IHs in late childhood, supported by radiological, immunohistochemical, in vitro, and in vivo evidence.  相似文献   
18.
Renal Denervation for Treatment of Cardiac Arrhythmias . It has now been more than a quarter of a century since modulation of the sympathetic nervous system was proposed for the treatment of cardiac arrhythmias of different origins. But it has also been some time since some of the early surgical attempts have been abandoned. With the development of ablation techniques, however, new approaches and targets have been recently introduced that have revolutionized our way of thinking about sympathetic modulation. Renal nerve ablation technology is now being successfully used for the treatment of resistant hypertension, but the indication spectrum might broaden and new therapeutic options might arise in the near future. This review focuses on the possible impact of renal sympathetic system modulation on cardiac arrhythmias, the current evidence supporting this approach, and the ongoing trials of this method in electrophysiological laboratories. We will discuss the potential roles that sympathetic modulation may play in the future.  相似文献   
19.
20.
The presented case reports on successful treatment with everolimus in a neonate with left ventricular giant rhabdomyoma. The authors used a different dosage regime compared to literature and documented rapid tumor regression by 3D echocardiography.  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