全文获取类型
收费全文 | 65924篇 |
免费 | 3648篇 |
国内免费 | 663篇 |
专业分类
耳鼻咽喉 | 1159篇 |
儿科学 | 2718篇 |
妇产科学 | 1872篇 |
基础医学 | 7542篇 |
口腔科学 | 2204篇 |
临床医学 | 5540篇 |
内科学 | 11969篇 |
皮肤病学 | 1366篇 |
神经病学 | 5081篇 |
特种医学 | 2475篇 |
外国民族医学 | 5篇 |
外科学 | 10106篇 |
综合类 | 2239篇 |
现状与发展 | 1篇 |
一般理论 | 20篇 |
预防医学 | 5296篇 |
眼科学 | 1609篇 |
药学 | 4932篇 |
5篇 | |
中国医学 | 786篇 |
肿瘤学 | 3310篇 |
出版年
2023年 | 563篇 |
2022年 | 806篇 |
2021年 | 1446篇 |
2020年 | 1025篇 |
2019年 | 1168篇 |
2018年 | 1850篇 |
2017年 | 1574篇 |
2016年 | 1728篇 |
2015年 | 1763篇 |
2014年 | 2254篇 |
2013年 | 3046篇 |
2012年 | 3738篇 |
2011年 | 4150篇 |
2010年 | 2400篇 |
2009年 | 1828篇 |
2008年 | 2929篇 |
2007年 | 3299篇 |
2006年 | 3092篇 |
2005年 | 3080篇 |
2004年 | 3195篇 |
2003年 | 3246篇 |
2002年 | 2966篇 |
2001年 | 2063篇 |
2000年 | 1926篇 |
1999年 | 1495篇 |
1998年 | 581篇 |
1997年 | 499篇 |
1996年 | 416篇 |
1995年 | 303篇 |
1992年 | 681篇 |
1991年 | 584篇 |
1990年 | 615篇 |
1989年 | 540篇 |
1988年 | 545篇 |
1987年 | 518篇 |
1986年 | 527篇 |
1985年 | 507篇 |
1984年 | 406篇 |
1983年 | 347篇 |
1979年 | 428篇 |
1975年 | 302篇 |
1974年 | 362篇 |
1973年 | 359篇 |
1972年 | 361篇 |
1971年 | 320篇 |
1970年 | 312篇 |
1969年 | 337篇 |
1968年 | 332篇 |
1967年 | 322篇 |
1966年 | 279篇 |
排序方式: 共有10000条查询结果,搜索用时 93 毫秒
1.
Molnár B. Aroca S. Dobos A. Orbán K. Szabó J. Windisch P. Stähli A. Sculean A. 《Clinical oral investigations》2022,26(12):7135-7142
Clinical Oral Investigations - To evaluate t he long-term outcomes following treatment of RT 1 multiple adjacent gingival recessions (MAGR) using the modified coronally advanced tunnel (MCAT) with... 相似文献
2.
Proteomic Profiling of Small Extracellular Vesicles Isolated from the Plasma of Vietnamese Patients with Non-Small Cell Lung Cancer Reveals Some Potential Biomarkers
下载免费PDF全文
![点击此处可从《Asian Pacific journal of cancer prevention》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Thao Phuong Bui Phuong Lan LeLinh Thi Tu Nguyen Le Trung ThoThai Hong Trinh 《Asian Pacific journal of cancer prevention》2022,23(6):1893-1900
Background: Considering the poor prognosis of non-small cell lung cancer (NSCLC), the objective of this study was to examine the potential of plasma-derived vesicles as a source of lung cancer-specific proteins. Extracellular vesicle (EV) cargos are specific to the source cells, hence they have the potential of being a source of cancer-specific proteins. Methods: The proteins differently expressed in cancer were determined and derived from EVs isolated from the plasma of NSCLC patients at the National Lung Hospital. To this end, purification was done using gel filtration chromatography and ultracentrifugation. In addition, nano liquid chromatography mass spectrometry (LC–MS/MS) was used for analyzing. Results: Fifty-seven EV-derived proteins related to NSCLC were highlighted in this research. Some of them have not been addressed before, such as EEF1A1 (elongation factor 1-α1), KPNB1 (Importin subunit beta 1), SRC (proto-oncogene tyrosine-protein kinase) and ACTC1 (actin, alpha cardiac muscle 1). This list was further confirmed through a comparison with ExoCarta and Vesiclepedia. Conclusion: This study is the first work to show the involvement of several novel proteins of small EV (EEF1A1, KPNB1, SRC, and ACTC1) in the progression of NSCLC. The results suggested that they could serve as novel biomarkers for non-small cell lung cancer in the future. 相似文献
3.
Esin Benli Küçük Ercan Kaydok Kürsad Ramazan Zor Gamze Yıldırım Biçer 《Topics in stroke rehabilitation》2020,27(8):630-635
ABSTRACT Objective: Dry eye is reported to be associated with several neurological diseases. The aim of this study is to evaluate the patients with hemiplegia after stroke for dry eye and compare their results with a control group. Materials and methods: Forty-five patients with hemiplegia and 45 individuals as the control group were included in the study. Tear function tests (Schirmer and tear breakup time) and a dry eye questionnaire for dry eye symptoms (ocular surface disease index) were performed and the results of the two groups were compared. Results: Schirmer test results were significantly lower in the post-stroke hemiplegia group compared to the control group (11.3 ± 8.2 mm and 20.6 ± 11.6 mm, respectively, p < .001). Tear breakup time results were significantly lower in the post-stroke hemiplegia group compared to the control group (7.9 ± 3.1 s and 12.1 ± 4.3 s, respectively, p < .001). Ocular surface disease index scores were not significantly different between hemiplegia and control groups (21.6 ± 20.0 and 19.8 ± 13.9, respectively, p = .635). Schirmer scores lower than 10 mm (60% and 30%, p < .001) and tear breakup time results lower than 10 s (65.6% and 28.9%, p < .001) were also higher in the hemiplegia group compared to control group. Conclusion: We found lower Schirmer test and tear breakup time results and similar OSDI scores in hemiplegia patients compared to controls. Hemiplegia patients may have dry eye without typical symptoms. This should be taken into consideration in the follow-up and rehabilitation of post-stroke hemiplegia patients. 相似文献
4.
5.
6.
7.
8.
9.
Evaluation of Adult versus Pediatric Transesophageal Echocardiography Probe Efficiency for Guiding Septal Puncture during Atrial Fibrillation Ablation
下载免费PDF全文
![点击此处可从《Echocardiography (Mount Kisco, N.Y.)》网站下载免费的PDF全文](/ch/ext_images/free.gif)
10.