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   1690篇
  免费   100篇
  国内免费   13篇
耳鼻咽喉   12篇
儿科学   71篇
妇产科学   12篇
基础医学   259篇
口腔科学   31篇
临床医学   76篇
内科学   281篇
皮肤病学   126篇
神经病学   112篇
特种医学   223篇
外科学   202篇
综合类   14篇
一般理论   2篇
预防医学   59篇
眼科学   7篇
药学   99篇
中国医学   5篇
肿瘤学   212篇
  2022年   22篇
  2021年   24篇
  2020年   24篇
  2019年   19篇
  2018年   38篇
  2017年   18篇
  2016年   31篇
  2015年   35篇
  2014年   36篇
  2013年   61篇
  2012年   70篇
  2011年   69篇
  2010年   51篇
  2009年   47篇
  2008年   66篇
  2007年   77篇
  2006年   77篇
  2005年   66篇
  2004年   56篇
  2003年   42篇
  2002年   53篇
  2001年   49篇
  2000年   33篇
  1999年   42篇
  1998年   44篇
  1997年   36篇
  1996年   43篇
  1995年   39篇
  1994年   25篇
  1993年   29篇
  1992年   24篇
  1991年   28篇
  1990年   32篇
  1989年   44篇
  1988年   38篇
  1987年   31篇
  1986年   34篇
  1985年   32篇
  1984年   20篇
  1983年   21篇
  1982年   28篇
  1981年   16篇
  1980年   18篇
  1978年   10篇
  1977年   17篇
  1976年   15篇
  1975年   9篇
  1974年   5篇
  1973年   7篇
  1966年   4篇
排序方式: 共有1803条查询结果,搜索用时 15 毫秒
1.

Background

Treatment of advanced anal squamous cell cancer (SCC) is usually with the combination of cisplatin and 5-fluorouracil, which is associated with heterogeneous responses across patients and significant toxicity. We examined the safety and efficacy of a modified schedule, FOLFCIS (leucovorin, fluorouracil, and cisplatin), and performed an integrated clinical and genomic analysis of anal SCC.

Patients and Methods

We reviewed all patients with advanced anal SCC receiving first-line FOLFCIS chemotherapy – essentially a FOLFOX (leucovorin, fluorouracil, and oxaliplatin) schedule with cisplatin substituted for oxaliplatin – in our institution between 2007 and 2017, and performed deep sequencing to identify genomic markers of response and key genomic drivers.

Results

Fifty-three patients with advanced anal SCC (48 metastatic; 5 unresectable, locally advanced) received first-line FOLFCIS during this period; all were platinum-naive. The response rate was 48% (95% confidence interval [CI], 32.6%-63%). With a median follow-up of 41.6 months, progression-free survival and overall survival were 7.1 months (95% CI, 4.4-8.6 months) and 22.1 months (95% CI, 16.9-28.1 months), respectively. Among all patients with advanced anal SCC that underwent sequencing during the study period, the most frequent genomic alterations consisted of chromosome 3q amplification (51%) and mutations in PIK3CA (29%) and KMT2D (22%). No genomic alteration correlated with response to platinum-containing treatment. Although there were few cases, patients with human papillomavirus-negative anal SCC did not appear to benefit from FOLFCIS, and all harbored distinct genomic profiles with TP53, TERT promoter, and CDKN2A mutations.

Conclusions

FOLFCIS appears effective and safe as first-line chemotherapy in patients with advanced anal SCC and represents an alternative treatment option for these patients.  相似文献   
2.
3.
4.
5.
BACKGROUND: Toxic epidermal necrolysis (TEN) is a severe and potentially fatal drug reaction characterized by an extensive skin rash with blisters and exfoliation, frequently accompanied by mucositis. The wounds caused by TEN are similar to second-degree burns and severe cases may involve large areas of skin loss. OBJECTIVES: Analysis of our results in patients with TEN and evaluation of the variety of therapeutic interventions that has been studied and suggested in TEN. PATIENTS/METHODS: Retrospective analysis of 19 consecutive patients with TEN treated in our burns centre between 1989 and 2004. RESULTS: Immediate withdrawal of any potentially fatal drug, maximum supportive care, and a restricted and tailored antibiotic, medical and surgical treatment regimen confined mortality to 21%, whereas prognosis scores like APACHE II and SCORTEN predicted mortality of 22 and 30%, respectively. A positive contribution of selective digestive decontamination is suggested but has yet to be established. CONCLUSIONS: Because of a potentially fatal outcome, fast referral of a patient suspected of TEN to a specialized centre (mostly a burns unit or specialized dermatology centre) for expert wound management and tailored comprehensive care is strongly advised and contributes to survival.  相似文献   
6.
1背景 育龄妇女常见慢性下腹痛,可造成身体损害、情绪忧伤及导致巨大的健康服务费用。美国在这方面的花费超过8亿8千万美元(Mathias 1996)。英国全国数据库的一般性诊治资料显示,慢性下腹痛发病率及流行率与偏头痛、背部痛、哮喘发病率相似(Zondervan 1999)。  相似文献   
7.
8.
In an open, non-randomized 3-way cross-over study, the bioavailability of 2-oxo-pyrrolidine-1-acetamide (piracetam, Encetrop) from two solid oral formulations and one liquid formulation was tested in 8 healthy male volunteers. The area under the concentration time curve, which is defined to be a measurement for bioequivalence among the three tested galenic formulations correlated very well with the area under the effect intensity-time curve, which was estimated in the same volunteers using electro-physiological methods. The different methods of estimation of bioequivalence show similarity between both solid galenic formulations, while the liquid form exhibits superiority in respect to the oral solid formulations.  相似文献   
9.
10.
Zusammenfassung Trotz der H?ufigkeit der Erkrankung liegen nur wenige gesicherte Erkenntnisse über die ?tiologie der chronischen Urtikaria vor. Bei 10 Patienten, bei denen keine anderweitige Ursache für die Erkrankung ermittelt werden konnte, führten wir eine Gastroskopie durch. Bei 8 der 10 Patienten konnte eine Besiedlung der Magenschleimhaut mit Helicobacter pylori gesichert werden. Die Urtikaria heilte innerhalb weniger Tage bei allen Patienten ab, nachdem wir eine Therapie mit Amoxicillin und Omeprazol einleiteten. Eingegangen am 6. Februar 1995 Angenommen am 12. Mai 1995  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