全文获取类型
收费全文 | 248031篇 |
免费 | 8423篇 |
国内免费 | 5683篇 |
专业分类
耳鼻咽喉 | 1888篇 |
儿科学 | 7355篇 |
妇产科学 | 3692篇 |
基础医学 | 23819篇 |
口腔科学 | 2576篇 |
临床医学 | 21747篇 |
内科学 | 39714篇 |
皮肤病学 | 1312篇 |
神经病学 | 19953篇 |
特种医学 | 11851篇 |
外国民族医学 | 37篇 |
外科学 | 36605篇 |
综合类 | 17968篇 |
现状与发展 | 19篇 |
一般理论 | 4篇 |
预防医学 | 23969篇 |
眼科学 | 4496篇 |
药学 | 17618篇 |
85篇 | |
中国医学 | 5590篇 |
肿瘤学 | 21839篇 |
出版年
2024年 | 275篇 |
2023年 | 1211篇 |
2022年 | 3259篇 |
2021年 | 3846篇 |
2020年 | 3006篇 |
2019年 | 2201篇 |
2018年 | 24192篇 |
2017年 | 19723篇 |
2016年 | 21642篇 |
2015年 | 4503篇 |
2014年 | 5307篇 |
2013年 | 5089篇 |
2012年 | 13129篇 |
2011年 | 27813篇 |
2010年 | 23633篇 |
2009年 | 15597篇 |
2008年 | 24070篇 |
2007年 | 26107篇 |
2006年 | 4643篇 |
2005年 | 5925篇 |
2004年 | 5760篇 |
2003年 | 6396篇 |
2002年 | 4086篇 |
2001年 | 1617篇 |
2000年 | 1668篇 |
1999年 | 1286篇 |
1998年 | 874篇 |
1997年 | 870篇 |
1996年 | 580篇 |
1995年 | 588篇 |
1994年 | 454篇 |
1993年 | 308篇 |
1992年 | 307篇 |
1991年 | 309篇 |
1990年 | 326篇 |
1989年 | 220篇 |
1988年 | 206篇 |
1987年 | 183篇 |
1986年 | 134篇 |
1985年 | 98篇 |
1984年 | 59篇 |
1983年 | 40篇 |
1982年 | 44篇 |
1980年 | 46篇 |
1974年 | 29篇 |
1938年 | 60篇 |
1937年 | 25篇 |
1934年 | 30篇 |
1932年 | 56篇 |
1930年 | 46篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
Lidong Zhang James E Littlejohn Yu Cui Xiaobo Cao Chander Peddaboina W Roy Smythe 《Molecular cancer》2010,9(1):110
Background
Bortezomib, a proteasome-specific inhibitor, has emerged as a promising cancer therapeutic agent. However, development of resistance to bortezomib may pose a challenge to effective anticancer therapy. Therefore, characterization of cellular mechanisms involved in bortezomib resistance and development of effective strategies to overcome this resistance represent important steps in the advancement of bortezomib-mediated cancer therapy. 相似文献102.
Background
The fibromyalgia syndrome (FMS) is suggested to be a manifestation of depression or affective spectrum disorder. We measured the cognitive style of patients with FMS to assess personality styles in 44 patients with fibromyalgia syndrome (FMS) by comparing them with 43 patients with major depressive disorder (MDD) and 41 healthy controls (HC). 相似文献103.
近年来随着交通运输业的发展,由于高能伤所导致创伤骨科中骨折粉碎程度愈来愈重,甚至使骨骼失去完整形态,尤其在股骨干部位,治疗极其困难,开放复位损伤大且达不到满意的固定,疗效不佳。我们最大限度地使用外固定器,很好地解决了这一难题,同样适用于肱骨和胫骨骨折。1临床资料本组12例,均为男性,年龄18~40岁,平均31.3岁。左侧5例,右侧7例。其中交通事故伤8例,高处坠落伤3例,摔伤1例。闭合伤10例,开放伤2例。骨折均为粉碎性,无软组织及血管神经损伤。2治疗方法患者麻醉后仰卧于骨科牵引手术床上,注意使患肢靠外,消毒铺巾后,保持下肢中立位轻度… 相似文献
104.
105.
本刊的审稿专家可使用同一个用户名作为审稿人进行稿件审理和作者投稿。(3)作者投稿请直接登录中华医学会业务巾心下信息管理平台的稿件远程管理系统,点击“作者在线投稿”。投稿成功后,系统自动发送回执邮件。作者可随时点击“在线查稿”,获知该稿件的审稿情况、处理进展、审稿意见、终审结论等;有关稿件处理的相关结果编辑部不再另行纸质通知。 相似文献
106.
107.
108.
Introduction Choroid plexus cysts can lead to isolation of the lateral ventricles and distension of the third ventricle. We present an
ultrasonographic video documentation of an infant with variably shaped and localized choroid plexus cyst of the third ventricle.
Case report An infant had periods of increased intracranial pressure with changing dilatation of the first to third ventricle. Cerebral
ultrasonography of the not crying boy demonstrated a choroid plexus cyst limply hanging down from the roof of the third ventricle
to the beginning of the aqueduct of Sylvius. During crying, the cyst prolapsed from the third into left lateral ventricle
and was strangled by the foramen of Monro. Endoscopic cyst fenestration and third ventriculostomy continuously solved the
problem of intermittent hydrocephalus occlusus.
Conclusion Depending not only on localization and size but also on cyst form and cerebrospinal fluid pressure, a single choroid plexus
cyst can cause various obstructions of cerebrospinal fluid pathways. 相似文献
109.
Murat Hamit Aytar Fikret Doğulu Berker Cemil Ertan Ergün Gökhan Kurt Kemali Baykaner 《Child's nervous system》2007,23(6):719-721
Introduction Iniencephaly, a neural tube defect involving occiput and inion and combined with rachischisis of the cervical, thoracic spine,
and retroflexion position of the head is a very rare congenital abnormality of the fetus–newborn with a 0.1–10 of 10,000 prevalence.
This abnormality’s prognosis is thought to be dismal. This abnormality can be associated with other abnormalities such as
anencephaly, encephalocele, hydrocephalus, cyclopia, absence of the mandible, cleft lip and palate, cardiovascular disorders,
diaphragmatic hernia, renal abnormalities, overgrowth of the arms compared to the legs, and club food and gastrointestinal
atresia.
Discussion Most of the patients are dead born, and the others die in a few hours. There are only six previously documented long-term
survivors. In our case, our patient with iniencephalic signs and findings is still living. She is 2 years old now. We think
that this patient presents a mild form of iniencephaly. 相似文献
110.
Stefan Ockert Hardy Schumacher Dittmar Böckler Katrin Malcherek Jochen Hansmann Jens Allenberg 《Langenbeck's archives of surgery / Deutsche Gesellschaft fur Chirurgie》2007,392(6):725-730
Background and aims Since the introduction of endovascular aortic aneurysm repair (EVAR) for aortic aneurysms, the number of juxtarenal aortic
aneurysms (JRA) has been growing steadily due to selection bias (neck morphology for EVAR). This case-match study compares
the perioperative outcome and midterm results of suprarenally clamped JRA with infrarenal aortic aneurysms (AAA).
Methods From 1997 to 2004, patients who received open surgery with suprarenal clamping for JRA were included in the study and compared
to matched patients with infrarenal clamping (AAA). Measurements analyzed were the in-hospital mortality and morbidity. Midterm
results were obtained through clinical investigation and magnetic resonance angiography imaging.
Results Thirty-five patients (mean age, 68.4 years; 30 male and 5 female) received suprarenal cross-clamping for JRA. The overall
in-hospital mortality for JRA and for the controls (AAA) with elective aortic repair was 4.5% (6.1% JRA; 3% AAA, p = 0.058). The morbidity of JRA was elevated according to the rate of pulmonary complications (p = 0.021) and the need for re-operation (p = 0.019). The mean follow-up time was 2.3 years (range, 8–96 months). At follow-up, 28 patients (80%) from the JRA group
and 29 patients from the AAA group (82.9%) were alive.
Conclusion Open aortic surgery for JRA with the need for suprarenal cross-clamping shows a slightly elevated in-hospital mortality rate
without statistical significance and equal midterm mortality results in comparison with infrarenally clamped aortic aneurysms. 相似文献