全文获取类型
收费全文 | 310371篇 |
免费 | 13599篇 |
国内免费 | 916篇 |
专业分类
耳鼻咽喉 | 4178篇 |
儿科学 | 8810篇 |
妇产科学 | 7279篇 |
基础医学 | 43514篇 |
口腔科学 | 10991篇 |
临床医学 | 20091篇 |
内科学 | 71179篇 |
皮肤病学 | 8805篇 |
神经病学 | 26174篇 |
特种医学 | 8119篇 |
外国民族医学 | 31篇 |
外科学 | 38222篇 |
综合类 | 1458篇 |
一般理论 | 65篇 |
预防医学 | 31475篇 |
眼科学 | 7096篇 |
药学 | 22363篇 |
中国医学 | 1189篇 |
肿瘤学 | 13847篇 |
出版年
2023年 | 1816篇 |
2022年 | 2586篇 |
2021年 | 6381篇 |
2020年 | 3585篇 |
2019年 | 6313篇 |
2018年 | 9344篇 |
2017年 | 6096篇 |
2016年 | 6267篇 |
2015年 | 6852篇 |
2014年 | 8553篇 |
2013年 | 12358篇 |
2012年 | 19724篇 |
2011年 | 20520篇 |
2010年 | 10876篇 |
2009年 | 8753篇 |
2008年 | 16866篇 |
2007年 | 17874篇 |
2006年 | 16887篇 |
2005年 | 16419篇 |
2004年 | 15014篇 |
2003年 | 14029篇 |
2002年 | 13247篇 |
2001年 | 8685篇 |
2000年 | 9381篇 |
1999年 | 7550篇 |
1998年 | 1921篇 |
1997年 | 1406篇 |
1996年 | 1290篇 |
1992年 | 3791篇 |
1991年 | 3444篇 |
1990年 | 3294篇 |
1989年 | 2833篇 |
1988年 | 2671篇 |
1987年 | 2491篇 |
1986年 | 2459篇 |
1985年 | 2278篇 |
1984年 | 1696篇 |
1983年 | 1459篇 |
1979年 | 1775篇 |
1978年 | 1185篇 |
1975年 | 1284篇 |
1974年 | 1606篇 |
1973年 | 1666篇 |
1972年 | 1543篇 |
1971年 | 1490篇 |
1970年 | 1413篇 |
1969年 | 1452篇 |
1968年 | 1463篇 |
1967年 | 1312篇 |
1966年 | 1178篇 |
排序方式: 共有10000条查询结果,搜索用时 15 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.
3.
Vilar-Compte Mireya Gaitán-Rossi Pablo Félix-Beltrán Lucía Bustamante Arturo V. 《Journal of immigrant and minority health / Center for Minority Public Health》2022,24(1):65-77
Journal of Immigrant and Minority Health - COVID-19 has disproportionally affected underrepresented minorities (URM) and low-income immigrants in the United States. The aim of the study is to... 相似文献
4.
5.
Whereas there is evidence that interpersonal communication, or conversation, influences predictors of alcohol consumption, the role of involvement in conversation effects remains unclear. This study explored how three aspects of involvement (topical relevance, or how relevant the topic of alcohol is; conversational relevance, or how relevant a conversation about alcohol is; and conversational effort, or how much effort people put into such a conversation), influence conversation effects. After assessing topical relevance, 46 same-sex dyads were requested to talk about the negative consequences of heavy drinking. Within each dyad, one participant was asked to take on an active talking role and the other participant a passive listening role. Next, conversational relevance, effort, and predictors of heavy drinking were measured. Results showed that participants who drank more alcohol found the topic of heavy drinking more relevant. This topical relevance increased conversational relevance and conversational effort. Conversational effort further increased when a talking role was assigned. Furthermore, participants who put more effort in the conversation and found it more relevant had more positive norms, identified more strongly with alcohol, and had higher intentions to drink. These findings suggest that more involvement in an alcohol-related conversation does not always lead to desirable outcomes. 相似文献
6.
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
7.
8.
9.
Ali Mobasheri Csaba Matta Ilona Uzielienè Emma Budd Pablo Martín-Vasallo Eiva Bernotiene 《Joint, bone, spine : revue du rhumatisme》2019,86(1):29-35
Chondrocytes are the main cells in the extracellular matrix (ECM) of articular cartilage and possess a highly differentiated phenotype that is the hallmark of the unique physiological functions of this specialised load-bearing connective tissue. The plasma membrane of articular chondrocytes contains a rich and diverse complement of membrane proteins, known as the membranome, which defines the cell surface phenotype of the cells. The membranome is a key target of pharmacological agents and is important for chondrocyte function. It includes channels, transporters, enzymes, receptors, and anchors for intracellular, cytoskeletal and ECM proteins and other macromolecular complexes. The chondrocyte channelome is a sub-compartment of the membranome and includes a complete set of ion channels and porins expressed in these cells. Many of these are multi-functional proteins with “moonlighting” roles, serving as channels, receptors and signalling components of larger molecular assemblies. The aim of this review is to summarise our current knowledge of the fundamental aspects of the chondrocyte channelome, discuss its relevance to cartilage biology and highlight its possible role in the pathogenesis of osteoarthritis (OA). Excessive and inappropriate mechanical loads, an inflammatory micro-environment, alternative splicing of channel components or accumulation of basic calcium phosphate crystals can result in an altered chondrocyte channelome impairing its function. Alterations in Ca2+ signalling may lead to defective synthesis of ECM macromolecules and aggravated catabolic responses in chondrocytes, which is an important and relatively unexplored aspect of the complex and poorly understood mechanism of OA development. 相似文献
10.
Wojciech Szychta M.D. Ph.D. Gheorghe Cerin M.D. Ph.D. F.E.S.C. Bogdan Adrian Popa M.D. Armienti Felice M.D. Guido Lanzillo M.D. Ph.D. Marco Diena M.D. Grzegorz Opolski M.D. Ph.D. F.E.S.C. 《Echocardiography (Mount Kisco, N.Y.)》2015,32(6):1040-1043
Sinus venosus atrial septal defect (SV‐ASD) usually coexists with partial anomalous pulmonary vein connection (PAPVC). It is a difficult diagnosis in transthoracic echocardiography (TTE) due to eccentric position of defects. We present a rare case of atypical anatomical variation in PAPVC, which was never described before. Two right pulmonary veins drained into superior vena cava, which overrode SV‐ASD and interatrial septum, a third pulmonary vein into the right atrium. Complete diagnosis could not be set after TTE, nor transesophageal echocardiography, whereas angio‐CT was finally conclusive. This diagnostic approach allowed the surgical planning. 相似文献