全文获取类型
收费全文 | 18584篇 |
免费 | 1123篇 |
国内免费 | 90篇 |
专业分类
耳鼻咽喉 | 132篇 |
儿科学 | 446篇 |
妇产科学 | 434篇 |
基础医学 | 2546篇 |
口腔科学 | 316篇 |
临床医学 | 1834篇 |
内科学 | 4257篇 |
皮肤病学 | 463篇 |
神经病学 | 1551篇 |
特种医学 | 314篇 |
外科学 | 1930篇 |
综合类 | 128篇 |
一般理论 | 11篇 |
预防医学 | 1982篇 |
眼科学 | 441篇 |
药学 | 1308篇 |
中国医学 | 80篇 |
肿瘤学 | 1624篇 |
出版年
2024年 | 18篇 |
2023年 | 156篇 |
2022年 | 350篇 |
2021年 | 631篇 |
2020年 | 347篇 |
2019年 | 552篇 |
2018年 | 581篇 |
2017年 | 393篇 |
2016年 | 402篇 |
2015年 | 540篇 |
2014年 | 757篇 |
2013年 | 985篇 |
2012年 | 1496篇 |
2011年 | 1657篇 |
2010年 | 889篇 |
2009年 | 710篇 |
2008年 | 1283篇 |
2007年 | 1285篇 |
2006年 | 1211篇 |
2005年 | 1190篇 |
2004年 | 1037篇 |
2003年 | 940篇 |
2002年 | 884篇 |
2001年 | 172篇 |
2000年 | 107篇 |
1999年 | 132篇 |
1998年 | 147篇 |
1997年 | 125篇 |
1996年 | 75篇 |
1995年 | 88篇 |
1994年 | 73篇 |
1993年 | 51篇 |
1992年 | 55篇 |
1991年 | 50篇 |
1990年 | 47篇 |
1989年 | 45篇 |
1988年 | 38篇 |
1987年 | 32篇 |
1986年 | 30篇 |
1985年 | 23篇 |
1984年 | 26篇 |
1983年 | 25篇 |
1982年 | 20篇 |
1981年 | 21篇 |
1980年 | 19篇 |
1979年 | 12篇 |
1978年 | 10篇 |
1977年 | 11篇 |
1976年 | 16篇 |
1974年 | 10篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
María del Carmen Azorín Samper Marta Hernandorena Gonzlez Alberto Ibez Arias Sandra Díaz Sierra Marta Bertolo Domínguez Flix Checa Ayet 《The breast journal》2020,26(2):252-254
Breast pseudoaneurysms after a core needle biopsy are a rare complication with a low incidence. However, it is important to be aware of the possibility of complications that require treatment. 相似文献
2.
3.
Primary cutaneous anaplastic large cell lymphomas with 6p25.3 rearrangement exhibit particular histological features 下载免费PDF全文
4.
Ignasi Esteban Carmen Pastor-Quiones Lorena Usero Montserrat Plana Felipe García Lorna Leal 《Viruses》2021,13(3)
Over 36 million people worldwide are infected with HIV. Antiretroviral therapy (ART) has proven to be highly effective to prevent HIV-1 transmission, clinical progression and death. Despite this success, the number of HIV-1 infected individuals continues increasing and ART should be taken for life. Therefore, there are two main priorities: the development of preventive vaccines to protect from HIV acquisition and achieve an efficient control of HIV infection in the absence of ART (functional cure). In this sense, in the last few years, there has been a broad interest in new and innovative approaches such as mRNA-based vaccines. RNA-based immunogens represent a promising alternative to conventional vaccines because of their high potency, capacity for rapid development and potential for low-cost manufacture and safe administration. Some mRNA-based vaccines platforms against infectious diseases have demonstrated encouraging results in animal models and humans. However, their application is still limited because the instability and inefficient in vivo delivery of mRNA. Immunogens, design, immunogenicity, chemical modifications on the molecule or the vaccine delivery methods are all crucial interventions for improvement. In this review we, will present the current knowledge and challenges in this research field. mRNA vaccines hold great promises as part of a combined strategy, for achieving HIV functional cure. 相似文献
5.
6.
Matrine,oxymatrine, and compound Kushen injection from the roots of Sophora flavescens: an overview of their anticancer activities 下载免费PDF全文
In the present review, we updated current information on the chemistry, contents, and anticancer properties of matrine (MT), oxymatrine (OMT), and compound Kushen injection (CKI). The anticancer properties were focused on lung, breast, and liver cancer cells because they are most susceptible. Sources of information were from Google, Google Scholar, PubMed, PubMed Central, Science Direct, PubChem, J-Stage, Directory of Open Access Journals (DOAJ), and China National Knowledge Infrastructure (CNKI). Reference was also made on botanical websites, such as Flora of China and World Flora Online. MT and OMT are dominant quinolizidine alkaloids from the roots of Sophora flavescens (Kushen) of the family Fabaceae. Against lung, breast, and liver cancer cells, MT and OMT inhibit cell proliferation; induce cell cycle arrest, apoptosis, and autophagy; restrict angiogenesis; and inhibit cell metastasis, invasion, and migration. The processes involve various molecular targets and signaling pathways. CKI is a traditional Chinese medicine (TCM) composed of root extracts of S. flavescens and Smilax glabra (Baituling) of the family Smilacaceae. With MT and OMT as major components, CKI has been approved for the treatment of cancer in China more than 20 years ago. In recent years, systematic reviews and meta-analysis have been undertaken to evaluate the anticancer effects of CKI. When CKI is used alone and in combination with chemotherapy of western medicine, there is much to be learned concerning their interactions besides their individual and integrated efficacy. Some perspectives of MT, OMT, and CKI are discussed, and their suggestions for future research are provided. 相似文献
7.
8.
José A. Lorente Pablo Cardinal-Fernández Diego Muñoz Fernando Frutos-Vivar Arnaud W. Thille Carlos Jaramillo Aida Ballén-Barragán José M. Rodríguez Oscar Peñuelas Guillermo Ortiz José Blanco Bruno Valle Pinheiro Nicolás Nin María del Carmen Marin Andrés Esteban Taylor B. Thompson 《Intensive care medicine》2015,41(11):1921-1930
9.
Is it possible to make a diagnosis of raw,heated, and baked egg allergy in children using cutoffs? A systematic review 下载免费PDF全文
10.
Lesley A. Inker Morgan E. Grams Andrew S. Levey Josef Coresh Massimo Cirillo John F. Collins Ron T. Gansevoort Orlando M. Gutierrez Takayuki Hamano Gunnar H. Heine Shizukiyo Ishikawa Sun Ha Jee Florian Kronenberg Martin J. Landray Katsuyuki Miura Girish N. Nadkarni Carmen A. Peralta Dietrich Rothenbacher Mark Woodward 《American journal of kidney diseases》2019,73(2):206-217