全文获取类型
收费全文 | 1303篇 |
免费 | 91篇 |
国内免费 | 22篇 |
专业分类
耳鼻咽喉 | 4篇 |
儿科学 | 48篇 |
妇产科学 | 17篇 |
基础医学 | 85篇 |
口腔科学 | 19篇 |
临床医学 | 153篇 |
内科学 | 384篇 |
皮肤病学 | 228篇 |
神经病学 | 40篇 |
特种医学 | 101篇 |
外科学 | 97篇 |
综合类 | 15篇 |
预防医学 | 137篇 |
药学 | 59篇 |
肿瘤学 | 29篇 |
出版年
2018年 | 8篇 |
2017年 | 12篇 |
2016年 | 30篇 |
2015年 | 35篇 |
2014年 | 36篇 |
2013年 | 64篇 |
2012年 | 13篇 |
2011年 | 19篇 |
2010年 | 34篇 |
2009年 | 53篇 |
2008年 | 15篇 |
2007年 | 19篇 |
2006年 | 25篇 |
2005年 | 11篇 |
2004年 | 13篇 |
2003年 | 13篇 |
2002年 | 14篇 |
2001年 | 10篇 |
2000年 | 22篇 |
1999年 | 39篇 |
1998年 | 68篇 |
1997年 | 55篇 |
1996年 | 61篇 |
1995年 | 51篇 |
1994年 | 56篇 |
1993年 | 38篇 |
1992年 | 57篇 |
1991年 | 15篇 |
1990年 | 42篇 |
1989年 | 43篇 |
1988年 | 55篇 |
1987年 | 35篇 |
1986年 | 28篇 |
1985年 | 13篇 |
1984年 | 35篇 |
1983年 | 17篇 |
1982年 | 20篇 |
1981年 | 22篇 |
1980年 | 17篇 |
1978年 | 11篇 |
1977年 | 8篇 |
1976年 | 13篇 |
1975年 | 8篇 |
1973年 | 9篇 |
1972年 | 7篇 |
1971年 | 9篇 |
1966年 | 9篇 |
1964年 | 14篇 |
1960年 | 6篇 |
1941年 | 6篇 |
排序方式: 共有1416条查询结果,搜索用时 11 毫秒
101.
102.
103.
104.
Background
Whereas the Scottish guidelines are audited annually, nobody evaluates guideline compliance in Germany. Thus, can external quality assurance data pursuant to section 137 of the German Social Code Book V be suitable for auditing guideline compliance?Materials and methods
From North Rhine Westphalia, a total of 48,831 cases of femoral fractures near the hip joint were evaluated. Compliance with the guidelines was determined based on preoperative hospital stay, thrombosis, and antibiotic prophylaxis. Guideline rationale was reviewed in terms of mortality and thromboembolism rate.Results
Sixty-four percent of the interventions were performed in a timely manner. Thrombosis prophylaxis was given in 99% of cases. Antibiotics were given as a single shot. There was no connection between mortality and thromboembolism rates or time to surgery.Conclusion[Überschrift]
Guideline compliance is similar in German and Scotland. The external quality assurance data are suitable for evaluating guideline compliance. The literature recommends a short time to surgery. Given the short observation period, it was not possible to demonstrate any improvement in outcomes. 相似文献105.
Gene promoter hypermethylation in ductal lavage fluid from healthy <Emphasis Type="Italic">BRCA</Emphasis>gene mutation carriers and mutation-negative controls 下载免费PDF全文
Locke I Kote-Jarai Z Fackler MJ Bancroft E Osin P Nerurkar A Izatt L Pichert G Gui GP Eeles RA 《Breast cancer research : BCR》2007,9(1):R20
Introduction
Female germline BRCA gene mutation carriers are at increased risk for developing breast cancer. The purpose of our study was to establish whether healthy BRCA mutation carriers demonstrate an increased frequency of aberrant gene promoter hypermethylation in ductal lavage (DL) fluid, compared with predictive genetic test negative controls, that might serve as a surrogate marker of BRCA1/2 mutation status and/or breast cancer risk. 相似文献106.
HICHEM BELHADJALI PH.D. HAYET AKKARI M.D. MONIA YOUSSEF M.D. MARIEM MOHAMED M.D. JAMELEDDINE ZILI PH.D. 《Pediatric dermatology》2011,28(5):580-581
Abstract: Natural henna is known to have a very low allergic potential. We describe here an exceptional case of bullous contact dermatitis caused by pure henna. 相似文献
107.
J. DOMINGUEZ‐CRUZ M.D. M. BUENO‐DELGADO M.D. J. BERNABEU‐WITTEL M.D. C. DELGADO‐PECELLIN M.D. J. CONEJO‐MIR PH.D. 《Pediatric dermatology》2010,27(2):218-219
Letters to the Editor are welcomed for publication (subject to editing). Letters must be signed by all authors, and must not exceed two pages of text including references. Letters should not duplicate material submitted or published in other journals. Prepublication proofs will not be provided. 相似文献
108.
MAGDALENA BUDISTEANU M.D. PH.D. AURORA ARGHIR M.D. PH.D. SORINA MIHAELA CHIRIEAC ING. GEORGETA CARDOS PH.D. AGRIPINA LUNGEANU PH.D. 《Pediatric dermatology》2010,27(2):212-214
Abstract: We present a case of oculocutaneous albinism in a child associating multiple malformations (preaxial polydactyly, small penis, cardiac malformation) and psychomotor retardation. To our knowledge, this association has not been previously described. 相似文献
109.
Abstract: Pigmented fungiform papillae of the tongue is a benign condition characterized by localized hyperpigmentation confined to fungiform papillae. Although the condition is not rare and might be easily diagnosed in dark‐skinned adults and children, it is seldom mentioned in the medical literature. Here, we describe an 11‐year‐old boy presenting typical features of pigmented fungiform papillae of the tongue. 相似文献
110.