全文获取类型
收费全文 | 2559篇 |
免费 | 187篇 |
国内免费 | 2篇 |
专业分类
耳鼻咽喉 | 31篇 |
儿科学 | 118篇 |
妇产科学 | 6篇 |
基础医学 | 197篇 |
口腔科学 | 43篇 |
临床医学 | 220篇 |
内科学 | 606篇 |
皮肤病学 | 12篇 |
神经病学 | 217篇 |
特种医学 | 96篇 |
外科学 | 377篇 |
综合类 | 55篇 |
预防医学 | 63篇 |
眼科学 | 367篇 |
药学 | 160篇 |
中国医学 | 2篇 |
肿瘤学 | 178篇 |
出版年
2024年 | 1篇 |
2023年 | 24篇 |
2022年 | 66篇 |
2021年 | 154篇 |
2020年 | 96篇 |
2019年 | 111篇 |
2018年 | 132篇 |
2017年 | 78篇 |
2016年 | 83篇 |
2015年 | 114篇 |
2014年 | 166篇 |
2013年 | 174篇 |
2012年 | 249篇 |
2011年 | 218篇 |
2010年 | 115篇 |
2009年 | 103篇 |
2008年 | 169篇 |
2007年 | 160篇 |
2006年 | 115篇 |
2005年 | 124篇 |
2004年 | 93篇 |
2003年 | 69篇 |
2002年 | 58篇 |
2001年 | 23篇 |
2000年 | 10篇 |
1999年 | 8篇 |
1998年 | 9篇 |
1997年 | 12篇 |
1996年 | 2篇 |
1995年 | 4篇 |
1994年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1988年 | 1篇 |
1981年 | 2篇 |
1980年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有2748条查询结果,搜索用时 2 毫秒
71.
Saumya Jayakumar Michael S. Middleton Eric J. Lawitz Parvez S. Mantry Stephen H. Caldwell Hays Arnold Anna Mae Diehl Reem Ghalib Magdy Elkhashab Manal F. Abdelmalek Kris V. Kowdley C. Stephen Djedjos Ren Xu Ling Han G. Mani Subramanian Robert P. Myers Zachary D. Goodman Nezam H. Afdhal Rohit Loomba 《Journal of hepatology》2019,70(1):133-141
72.
Allan Abraham Rajasekar Sannasi Rohit Nair 《International Journal of Sports Physical Therapy》2015,10(1):29-36
Background
International sports programs have established pre‐participation athletic screening procedures as an essential component to identify athletes that are at a high risk of becoming injured. The Functional Movement Screen (FMS™) is a screening instrument intended to evaluate deficiencies in the mobility and stability of an athlete that might be linked to injury. To date, there are no published normative values for the FMS™ in adolescent school aged children. The purpose of this study was to establish normative values for the FMS™ in adolescent school aged children (10 to 17 years). Secondary aims were to investigate whether the performance differed between boys and girls and between those with or without previous history of injury.Methods
1005 adolescent school students, including both males and females between the ages of 10 and 17 years who fulfilled the inclusion and exclusion criteria, were selected for the study. The test administration procedures, instructions and scoring process associated with the standardized version of the test were followed in order to ensure accuracy in scoring. The components of the FMS™ include the deep squat, hurdle step, in‐line lunge, shoulder mobility, active straight leg raise, trunk stability push up, and rotary stability.Results
The mean composite FMS™ score was 14.59 (CI 14.43 ‐ 14.74) out of a possible total of 21. There was a statistically significant difference in scores between females and males (p= .000). But no statistically significant difference in scores existed between those who reported a previous injury and those who did not report previous injury (p=.300). The variables like age (r= ‐.038, p=.225), height(r= .065, p= .040), weight (r=.103, p=.001) did not show a strong correlations with the mean composite score.Conclusion
This study provides normative values for the FMS™ in adolescent school aged children, which could assist in evaluation of functional mobility and stability in this population.Level of evidence
2c 相似文献73.
74.
75.
Olivera Grbovic-Huezo Kenneth L. Pitter Nicolas Lecomte Joseph Saglimbeni Gokce Askan Matilda Holm Jerry P. Melchor Rohit Chandwani Suhasini Joshi Caj Haglund Christine A. Iacobuzio-Donahue Gabriela Chiosis Tuomas Tammela Steven D. Leach 《Proceedings of the National Academy of Sciences of the United States of America》2020,117(48):30670
76.
Rohit B. Sharma Amy C. O’Donnell Rachel E. Stamateris Binh Ha Karen M. McCloskey Paul R. Reynolds Peter Arvan Laura C. Alonso 《The Journal of clinical investigation》2015,125(10):3831-3846
Although stem cell populations mediate regeneration of rapid turnover tissues, such as skin, blood, and gut, a stem cell reservoir has not been identified for some slower turnover tissues, such as the pancreatic islet. Despite lacking identifiable stem cells, murine pancreatic β cell number expands in response to an increase in insulin demand. Lineage tracing shows that new β cells are generated from proliferation of mature, differentiated β cells; however, the mechanism by which these mature cells sense systemic insulin demand and initiate a proliferative response remains unknown. Here, we identified the β cell unfolded protein response (UPR), which senses insulin production, as a regulator of β cell proliferation. Using genetic and physiologic models, we determined that among the population of β cells, those with an active UPR are more likely to proliferate. Moreover, subthreshold endoplasmic reticulum stress (ER stress) drove insulin demand–induced β cell proliferation, through activation of ATF6. We also confirmed that the UPR regulates proliferation of human β cells, suggesting that therapeutic UPR modulation has potential to expand β cell mass in people at risk for diabetes. Together, this work defines a stem cell–independent model of tissue homeostasis, in which differentiated secretory cells use the UPR sensor to adapt organ size to meet demand. 相似文献
77.
78.
79.
Anu Balakrishnan Rohit Aggarwal Vikas Agarwal Latika Gupta 《International journal of rheumatic diseases》2020,23(9):1126-1135
Inclusion body myositis is a rare sporadic inflammatory‐degenerative myopathy of the elderly. Despite being the commonest type of acquired myopathy after the age of 50, misdiagnosis is extremely common. The most frequent hurdle in identifying new cases is the wrong diagnosis of polymyositis or motor neuron disease. Novel insights into pathogenic mechanisms have heralded the quest for newer therapeutics as well as drug repurposing in this otherwise progressive disorder. 相似文献
80.
Prashant Nasa Rohit Yadav S.K. Nagrani Sanjay Raina Ankur Gupta Shakti Jain 《Indian Journal of Critical Care Medicine》2014,18(5):323-325
We report a case of a 65-year-old female diagnosed with sever dengue fever. She started showing recovery from dengue fever with medical management. On day 6 of admission, she had leukocytosis, altered mental sensorium, and hemoptysis. Chest tomography showed air space consolidation with multiple nodules in the left upper and middle lobe sputum and bronchoalveolar lavage cultures were positive for Aspergillus flavus. The patient showed improvement with voriconazole and therapy was continued for 6 weeks. 相似文献