全文获取类型
收费全文 | 17090篇 |
免费 | 1085篇 |
国内免费 | 173篇 |
专业分类
耳鼻咽喉 | 246篇 |
儿科学 | 208篇 |
妇产科学 | 349篇 |
基础医学 | 2790篇 |
口腔科学 | 301篇 |
临床医学 | 1337篇 |
内科学 | 3233篇 |
皮肤病学 | 689篇 |
神经病学 | 1102篇 |
特种医学 | 1056篇 |
外科学 | 2597篇 |
综合类 | 75篇 |
一般理论 | 1篇 |
预防医学 | 776篇 |
眼科学 | 292篇 |
药学 | 1740篇 |
中国医学 | 328篇 |
肿瘤学 | 1228篇 |
出版年
2023年 | 95篇 |
2022年 | 366篇 |
2021年 | 546篇 |
2020年 | 279篇 |
2019年 | 442篇 |
2018年 | 460篇 |
2017年 | 392篇 |
2016年 | 599篇 |
2015年 | 798篇 |
2014年 | 996篇 |
2013年 | 1072篇 |
2012年 | 1599篇 |
2011年 | 1562篇 |
2010年 | 977篇 |
2009年 | 749篇 |
2008年 | 1015篇 |
2007年 | 957篇 |
2006年 | 876篇 |
2005年 | 872篇 |
2004年 | 689篇 |
2003年 | 607篇 |
2002年 | 489篇 |
2001年 | 246篇 |
2000年 | 254篇 |
1999年 | 214篇 |
1998年 | 100篇 |
1997年 | 69篇 |
1996年 | 60篇 |
1995年 | 49篇 |
1994年 | 36篇 |
1993年 | 39篇 |
1992年 | 68篇 |
1991年 | 66篇 |
1990年 | 56篇 |
1989年 | 45篇 |
1988年 | 48篇 |
1987年 | 42篇 |
1986年 | 50篇 |
1985年 | 49篇 |
1984年 | 39篇 |
1983年 | 50篇 |
1982年 | 19篇 |
1981年 | 18篇 |
1980年 | 18篇 |
1979年 | 35篇 |
1978年 | 31篇 |
1977年 | 22篇 |
1976年 | 19篇 |
1974年 | 19篇 |
1973年 | 26篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Jin Sik Burm 《Journal of plastic, reconstructive & aesthetic surgery》2006,59(3):253-256
This paper describes the use of a composite graft from the mastoid area consisting of full-thickness skin peripherally and selectively localised fascia-fat tissue underneath the skin centrally for immediate reconstruction of moderate defects of the nasal tip including the columella and soft triangle. Mastoid composite grafting is a simple and safe procedure that avoids partial graft loss and provides adequate augmentation of soft tissue, easy reshaping of the new nostril rim, minimal post-operative shrinkage, and no donor-site morbidity. Then, it results in a satisfactory nasal appearance with adequate tip projection and symmetry. This procedure may represent a preferred method of nasal tip reconstruction. 相似文献
2.
3.
4.
5.
Jong-Moon Lee Kun-Woo Park Woo-Keun Seo Moon Ho Park Changsu Han Inho Jo Sangmee Ahn Jo 《Movement disorders》2007,22(16):2446-2449
There have been a few studies and inconsistent results regarding the coincidence of Parkinson's disease (PD) and atherosclerotic diseases, such as cerebrovascular disease. Carotid intima-media thickness (IMT) is a known marker for subclinical atherosclerosis. The aim of this study was to investigate the carotid IMT between PD patients and controls. We studied 43 patients with PD and 86 matched controls. The carotid IMT in PD patients was significantly smaller than in controls (0.796 +/- 0.179 mm vs. 0.913 +/- 0.237 mm, P < 0.05). In multivariate analysis, the carotid IMT was inversely associated with the duration of levodopa medication and the severity of PD. These results suggest that PD patients have a lower risk of atherosclerosis. 相似文献
6.
7.
8.
9.
Seong-Beom Koh Byung-Jo Kim Moon Ho Park Sung-Wook Yu Kun-Woo Park Dae Hie Lee 《Journal of clinical neuroscience》2007,14(11):1073-1077
Cerebral infarction as a complication of tubercular (TB) meningitis is not uncommon, but an adequate comparison of patients with and without stroke has not been carried out. This study was performed to evaluate the clinical characteristics of cerebral infarction secondary to TB meningitis, and to investigate predictive factors for cerebral infarction in patients with TB meningitis. Patients with TB meningitis were recruited over a period of 56 months. They were divided into two groups, those with and those without stroke. Demographic features and clinical, laboratory, and neuroradiological findings were compared between the two groups. We classified strokes into subtypes using neuroimaging findings. Of the 38 patients who were diagnosed with TB meningitis, eight also experienced cerebral infarction. The percentage of cerebrospinal fluid leukocytes that were neutrophils was significantly higher in patients with stroke (68%) than in patients without stroke (31%; p=0.0001). Upon initial CT imaging, meningeal enhancement was found in 11 patients, and of these patients, six experienced stroke. There were no significant differences between the groups with respect to other clinical and laboratory features, including demographic features, time between meningitis onset and treatment initiation, peripheral white blood cell count, and cerebrospinal fluid findings. Five of the eight patients who developed stroke had lacunar infarcts. One of the three patients with territorial nonlacunar infarction died due to herniation. When treating patients with TB meningitis, the possibility of cerebral infarction should be considered when patients develop focal neurological signs, meningeal enhancement on a CT scan, and sustained polymorphic cerebrospinal fluid pleocytosis. 相似文献
10.