全文获取类型
收费全文 | 22379篇 |
免费 | 1361篇 |
国内免费 | 48篇 |
专业分类
耳鼻咽喉 | 155篇 |
儿科学 | 699篇 |
妇产科学 | 744篇 |
基础医学 | 2783篇 |
口腔科学 | 305篇 |
临床医学 | 3620篇 |
内科学 | 3699篇 |
皮肤病学 | 205篇 |
神经病学 | 2332篇 |
特种医学 | 404篇 |
外科学 | 2008篇 |
综合类 | 253篇 |
一般理论 | 40篇 |
预防医学 | 3283篇 |
眼科学 | 332篇 |
药学 | 1358篇 |
中国医学 | 32篇 |
肿瘤学 | 1536篇 |
出版年
2023年 | 142篇 |
2022年 | 103篇 |
2021年 | 358篇 |
2020年 | 294篇 |
2019年 | 449篇 |
2018年 | 556篇 |
2017年 | 417篇 |
2016年 | 470篇 |
2015年 | 567篇 |
2014年 | 770篇 |
2013年 | 1150篇 |
2012年 | 1691篇 |
2011年 | 1851篇 |
2010年 | 964篇 |
2009年 | 867篇 |
2008年 | 1559篇 |
2007年 | 1693篇 |
2006年 | 1580篇 |
2005年 | 1561篇 |
2004年 | 1561篇 |
2003年 | 1414篇 |
2002年 | 1400篇 |
2001年 | 216篇 |
2000年 | 133篇 |
1999年 | 152篇 |
1998年 | 233篇 |
1997年 | 176篇 |
1996年 | 124篇 |
1995年 | 172篇 |
1994年 | 150篇 |
1993年 | 113篇 |
1992年 | 101篇 |
1991年 | 82篇 |
1990年 | 56篇 |
1989年 | 61篇 |
1988年 | 59篇 |
1987年 | 54篇 |
1986年 | 37篇 |
1985年 | 62篇 |
1984年 | 57篇 |
1983年 | 50篇 |
1982年 | 57篇 |
1981年 | 57篇 |
1980年 | 32篇 |
1979年 | 21篇 |
1978年 | 17篇 |
1977年 | 11篇 |
1975年 | 9篇 |
1974年 | 9篇 |
1969年 | 7篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Olivari Davide De Giorgio Daria Staszewsky Lidia Irene Fumagalli Francesca Boccardo Antonio Novelli Deborah Manfredi Martina Babini Giovanni Luciani Anita Ruggeri Laura Magliocca Aurora Zani Davide Danilo Masson Serge Belloli Angelo Pravettoni Davide Maiocchi Giuseppe Latini Roberto Ristagno Giuseppe 《Cardiovascular drugs and therapy / sponsored by the International Society of Cardiovascular Pharmacotherapy》2022,36(4):727-738
Cardiovascular Drugs and Therapy - Available animal models of acute heart failure (AHF) and their limitations are discussed herein. A novel and preclinically relevant porcine model of decompensated... 相似文献
2.
3.
Amarpali Brar Angelika Gruessner Deborah Adey Fasika Tedla Ernie Yap Dheeraj Kaul Nabil Sumrani Devon John Moro O. Salifu 《Transplantation proceedings》2021,53(3):913-919
There is an increase in older-adult renal transplant recipients in United States. The objective of this study was to assess the association between physical function (PF) and patient survival in renal transplant recipients who are aged 65 years or older. Using United Network for Organ Sharing (UNOS) data from 2007 to 2016, renal transplant recipients aged 65 years or older were included. Multivariable Cox regression was used to assess associations between survival and functional status adjusted for age, sex, race, donor quality, diabetes, and dialysis vintage. The study identified 26,721 patients. Patient survival was significantly higher in recipients who needed no assistance and lowest in patients in need of total assistance (P < .0001). In deceased donor (DD) transplants, the relative risk for mortality was 2.06 (1.74-2.43) for total assistance and 1.17 (1.08-1.28) for moderate assistance compared to no assistance (P < .0001). In living donor (LD) transplants, the relative risk of mortality was 1.38 (0.78-2.42) for patients needing total assistance and 1.37 (1.14-1.65) for patients needing moderate assistance compared to patients who did not need assistance (0.003). PF is an independent predictor of post-transplant mortality. Assessment of older potential renal transplant recipients should include assessment and standardization of functional status to counsel about post-transplant survival. 相似文献
4.
5.
6.
Digestive Diseases and Sciences - 相似文献
7.
8.
9.
Richard Huynh Deborah Du Jun Ho Im Jessica Zachar Sobia Zafar 《International dental journal》2022,72(3):308-314
ObjectivesThe aim of this study was to retrospectively examine trends in percutaneous exposure incidences (PEIs) at the School of Dentistry (SoD) from 2009 to 2019 and to report on the underreporting rate of PEIs, current attitudes, and awareness of PEI safety protocols from clinical staff and students at the SoD in 2019.MethodsRetrospective data were collected from deidentified archival incident reports from 2009 to 2019 from the SoD's incident reporting system (UQSafe and Legacy Database). Additionally, cross-sectional data were collected via the validated Percutaneous Exposure Incident Questionnaires (PEIQ) completed by clinical staff and students of the SoD in 2019.ResultsFrom the archival data, the majority (79.9%) of the 618 reported PEIs involved students. Local anaesthetic-related procedures were the most common cause in the archival (31.5%) and survey data (23.7%), whereas the needle-prick was the most common causative instrument in both data sets. Additionally, the finger was the most common site of injury found in the archival (53.0%) and survey data (52.8%). From 345 responses to the survey, 42.1% of PEIs sustained were not reported.ConclusionsStudents were at a higher risk of sustaining a PEI than staff members between 2009 and 2019. The reported knowledge on PEI classification and preventative measures is inadequate, suggesting that further PEI education is necessary. The study provides evidence of the trends in PEIs as well as data on the attitudes and awareness of student and staff at a dental teaching faculty to support the development of PEI safety management protocols. 相似文献
10.
Angela J. Jacques-Tiura Deborah A. Ellis April Idalski Carcone Sylvie Naar Kathryn Brogan Hartlieb Elizabeth K. Towner Thomas N. Templin K.-L. Catherine Jen 《The Journal of adolescent health》2019,64(3):355-361