全文获取类型
收费全文 | 890篇 |
免费 | 105篇 |
专业分类
耳鼻咽喉 | 20篇 |
儿科学 | 51篇 |
妇产科学 | 13篇 |
基础医学 | 104篇 |
口腔科学 | 44篇 |
临床医学 | 78篇 |
内科学 | 197篇 |
皮肤病学 | 9篇 |
神经病学 | 58篇 |
特种医学 | 11篇 |
外科学 | 182篇 |
综合类 | 13篇 |
预防医学 | 35篇 |
眼科学 | 26篇 |
药学 | 88篇 |
中国医学 | 6篇 |
肿瘤学 | 60篇 |
出版年
2024年 | 1篇 |
2023年 | 5篇 |
2022年 | 15篇 |
2021年 | 32篇 |
2020年 | 16篇 |
2019年 | 27篇 |
2018年 | 28篇 |
2017年 | 25篇 |
2016年 | 31篇 |
2015年 | 31篇 |
2014年 | 46篇 |
2013年 | 46篇 |
2012年 | 90篇 |
2011年 | 113篇 |
2010年 | 38篇 |
2009年 | 17篇 |
2008年 | 40篇 |
2007年 | 33篇 |
2006年 | 44篇 |
2005年 | 34篇 |
2004年 | 35篇 |
2003年 | 39篇 |
2002年 | 25篇 |
2001年 | 17篇 |
2000年 | 20篇 |
1999年 | 18篇 |
1998年 | 10篇 |
1997年 | 13篇 |
1996年 | 8篇 |
1995年 | 2篇 |
1994年 | 6篇 |
1993年 | 17篇 |
1992年 | 21篇 |
1991年 | 6篇 |
1990年 | 1篇 |
1989年 | 4篇 |
1988年 | 2篇 |
1987年 | 4篇 |
1986年 | 6篇 |
1985年 | 4篇 |
1984年 | 4篇 |
1983年 | 4篇 |
1982年 | 3篇 |
1980年 | 1篇 |
1979年 | 7篇 |
1978年 | 4篇 |
1976年 | 1篇 |
1966年 | 1篇 |
排序方式: 共有995条查询结果,搜索用时 156 毫秒
121.
122.
Acquired bone marrow failure can result after infections caused by viruses, exposure to toxins, or chemicals. Majority of acquired cases of marrow failure labeled as "idiopathic" are probably immune mediated through activated T-cells and cytokines. We observed pancytopenia in the second week, after pharyngeal diphtheria in a 14-year-old child. Bone marrow examination showed reduced marrow precursors affecting all 3 cell lines. There are no clinical cases of myelosuppression reported in diphtheria infection and this is probably the first reported case of bone marrow failure after diphtheria infection. However, such observations merit further evaluation and confirmation by experimental studies. 相似文献
123.
Scarless surgery is the Holy Grail of surgery and the very raison d'etre of Minimal Access Surgery was the reduction of scars and thereby pain and suffering of the patients. The work of Muhe and Mouret in the late 80s, paved the way for mainstream laparoscopic procedures and it rapidly became the method of choice for many intra-abdominal procedures. Single-incision laparoscopic surgery is a very exciting new modality in the field of minimal access surgery which works for further reducing the scars of standard laparoscopy and towards scarless surgery. Natural orifice translumenal endoscopic surgery (NOTES) was developed for scarless surgery, but did not gain popularity due to a variety of reasons. NOTES stands for natural orifice translumenal endoscopic surgery, a term coined by a consortium in 2005. NOTES remains a research technique with only a few clinical cases having been reported. The lack of success of NOTES seems to have spurred on the interest in single-incision laparoscopy as an eminently doable technique in the present with minimum visible scarring, rendering a 'scarless' effect. Laparo-endoscopic single-site surgery (LESS) is, a term coined by a multidisciplinary consortium in 2008 for single-incision laparoscopic surgery. These are complementary technologies with similar difficulties of access, lack of triangulation and inadequate instrumentation as of date. LESS seems to offer an advantage to surgeons with its familiar field of view and instruments similar to those used in conventional laparoscopy. LESS remains a evolving special technique used successfully in many a centre, but with a significant way to go before it becomes mainstream. It currently stands between standard laparoscopy and NOTES in the armamentarium of minimal access surgery. This article outlines the development of LESS giving an overview of all the techniques and devices available and likely to be available in the future. 相似文献
124.
125.
We evaluated in-hospital outcomes of acute coronary syndrome (ACS) patients with metabolic syndrome (MetS) in Oman. We analyzed the records of 1392 patients admitted with a diagnosis of ACS as part of the Gulf Registry of Acute Coronary Events. The prevalence of MetS among patients with ACS was 66%, with female preponderance (80% vs 57%; P < .001). MetS was associated with several characteristics including diabetes (45% vs 19%; P < .001), hyperlipidemia (40% vs 23%; P < .001), hypertension (62% vs 34%; P < .001), renal impairment (9.3% vs 3.4%; P < .001), Killip score > II (13% vs 8%; P = .004), and non-ST segment elevation myocardial infarction (78% vs 68%; P < .001). After multivariate adjustment, MetS was associated with higher risk of in-hospital heart failure (odds ratio [OR], 1.37; 95% CI: 1.03-1.81; P = .028) and mortality (OR, 4.42; 95% CI: 1.25-15.5; P = .020). Prevalence of MetS among patients with ACS in Oman is high. MetS was associated with higher in-hospital heart failure and mortality. 相似文献
126.
127.
128.
129.
130.