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   22387篇
  免费   1696篇
  国内免费   55篇
耳鼻咽喉   214篇
儿科学   827篇
妇产科学   558篇
基础医学   3138篇
口腔科学   504篇
临床医学   2445篇
内科学   4846篇
皮肤病学   694篇
神经病学   1920篇
特种医学   458篇
外国民族医学   1篇
外科学   2478篇
综合类   124篇
一般理论   52篇
预防医学   2314篇
眼科学   367篇
药学   1505篇
中国医学   55篇
肿瘤学   1638篇
  2023年   168篇
  2022年   358篇
  2021年   784篇
  2020年   386篇
  2019年   733篇
  2018年   827篇
  2017年   553篇
  2016年   639篇
  2015年   653篇
  2014年   911篇
  2013年   1144篇
  2012年   1617篇
  2011年   1759篇
  2010年   954篇
  2009年   804篇
  2008年   1317篇
  2007年   1377篇
  2006年   1302篇
  2005年   1270篇
  2004年   1071篇
  2003年   1038篇
  2002年   986篇
  2001年   380篇
  2000年   405篇
  1999年   314篇
  1998年   186篇
  1997年   140篇
  1996年   132篇
  1995年   109篇
  1994年   118篇
  1993年   79篇
  1992年   187篇
  1991年   165篇
  1990年   120篇
  1989年   125篇
  1988年   115篇
  1987年   94篇
  1986年   89篇
  1985年   99篇
  1984年   72篇
  1983年   57篇
  1982年   40篇
  1981年   53篇
  1980年   44篇
  1979年   39篇
  1978年   33篇
  1977年   44篇
  1976年   30篇
  1973年   29篇
  1971年   24篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
1.
Hailey–Hailey disease (HHD), also known as benign familial pemphigus, is an autosomal dominant skin condition that affects the adhesion of epidermal keratinocytes. Although the initial manifestation of flaccid vesicles on erythematous or normal skin in flexure sites frequently goes unnoticed, large, macerated, exudative plaques of superficial erosions with crusting are observed at the time of diagnosis. There is no specific treatment for HHD, and most cases are symptomatically supported. However, infrared laser ablation has been somewhat helpful. We present a case successfully treated with fractional CO2 laser showing a long-term favourable outcome and no adverse effects. Thus, this modality could be an alternative to full ablation for this condition.  相似文献   
2.
3.
We present a 6‐year‐old girl with skin hyperpigmentation, leukoplakia, and onychodystrophy, the classic mucocutaneous triad usually associated with dyskeratosis congenita. The patient also had premature graying of the hair, bone marrow failure, hepatitis, exudative retinopathy, osteopenia with multiple long bone fractures, and intracranial calcifications and brain cysts. Coats plus syndrome is a rare disease with a clinical and genetic overlap with dyskeratosis congenita. This disease is reviewed, with a focus on the pathogenesis of the genetic anomalies and its background as a telomere biology disorder.  相似文献   
4.
5.
6.
7.
Background and aimsDespite using sensor-augmented pump therapy (SAPT) with predictive low-glucose management (PLGM), hypoglycemia is still an issue in patients with type 1 Diabetes (T1D). Our aim was to determine factors associated with clinically significant hypoglycemia (<54 mg/dl) in persons with T1D treated with PLGM-SAPT.Methodology: This is a multicentric prospective real-life study performed in Colombia, Chile and Spain. Patients with T1D treated with PLGM-SAPT, using sensor ≥70% of time, were included. Data regarding pump and sensor use patterns and carbohydrate intake from 28 consecutive days were collected. A bivariate and multivariate Poisson regression analysis was carried out, to evaluate the association between the number of events of <54 mg/dl with the clinical variables and patterns of sensor and pump use.Results188 subjects were included (41 ± 13.8 years-old, 23 ± 12 years disease duration, A1c 7.2% ± 0.9). The median of events <54 mg/dl was four events/patient/month (IQR 1–10), 77% of these events occurred during day time. Multivariate analysis showed that the number of events of hypoglycemia were higher in patients with previous severe hypoglycemia (IRR1.38; 95% CI 1.19–1.61; p < 0.001), high glycemic variability defined as Coefficient of Variation (CV%) > 36% (IRR 2.09; 95%CI 1.79–2.45; p < 0.001) and hypoglycemia unawareness. A protector effect was identified for adequate sensor calibration (IRR 0.77; 95%CI 0.66–0.90; p:0.001), and the use of bolus wizard >60% (IRR 0.74; 95%CI 0.58–0.95; p:0.017).ConclusionIn spite of using advanced SAPT, clinically significant hypoglycemia is still a non-negligible risk. Only the identification and intervention of modifiable factors could help to prevent and reduce hypoglycemia in clinical practice.  相似文献   
8.
9.
10.
International Journal of Legal Medicine - Sex identification is a primary step in forensic analysis of skeletal remains. The accuracy of sex estimation methods greatly depends on the sexual...  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