全文获取类型
收费全文 | 6465篇 |
免费 | 340篇 |
国内免费 | 8篇 |
专业分类
耳鼻咽喉 | 136篇 |
儿科学 | 357篇 |
妇产科学 | 127篇 |
基础医学 | 627篇 |
口腔科学 | 102篇 |
临床医学 | 374篇 |
内科学 | 1239篇 |
皮肤病学 | 131篇 |
神经病学 | 463篇 |
特种医学 | 196篇 |
外科学 | 1031篇 |
综合类 | 289篇 |
预防医学 | 357篇 |
眼科学 | 290篇 |
药学 | 486篇 |
中国医学 | 21篇 |
肿瘤学 | 587篇 |
出版年
2023年 | 29篇 |
2022年 | 56篇 |
2021年 | 155篇 |
2020年 | 93篇 |
2019年 | 125篇 |
2018年 | 151篇 |
2017年 | 111篇 |
2016年 | 145篇 |
2015年 | 133篇 |
2014年 | 215篇 |
2013年 | 290篇 |
2012年 | 390篇 |
2011年 | 466篇 |
2010年 | 267篇 |
2009年 | 251篇 |
2008年 | 344篇 |
2007年 | 391篇 |
2006年 | 366篇 |
2005年 | 299篇 |
2004年 | 309篇 |
2003年 | 257篇 |
2002年 | 204篇 |
2001年 | 138篇 |
2000年 | 162篇 |
1999年 | 144篇 |
1998年 | 53篇 |
1997年 | 46篇 |
1996年 | 48篇 |
1995年 | 35篇 |
1993年 | 30篇 |
1992年 | 69篇 |
1991年 | 54篇 |
1990年 | 49篇 |
1989年 | 63篇 |
1988年 | 48篇 |
1987年 | 65篇 |
1986年 | 55篇 |
1985年 | 63篇 |
1984年 | 55篇 |
1983年 | 37篇 |
1979年 | 26篇 |
1978年 | 29篇 |
1977年 | 30篇 |
1974年 | 34篇 |
1973年 | 49篇 |
1972年 | 42篇 |
1971年 | 37篇 |
1970年 | 30篇 |
1969年 | 35篇 |
1968年 | 36篇 |
排序方式: 共有6813条查询结果,搜索用时 15 毫秒
101.
Rao Vishal Prasad Rachana Subash Anand Sinha Piyush Majumdar Kinjal 《Journal of robotic surgery》2020,14(2):337-341
Journal of Robotic Surgery - The retroauricular approach is being increasingly used in surgeries of head and neck in an attempt to avoid a disfiguring scar over the face or neck. The elevation of... 相似文献
102.
Anju Sinha Nomita Chandhiok Seema Sahay Sibnath Deb Shalini Bharat Abhilasha Gupta 《AIDS care》2015,27(9):1196-1198
A compelling case for promoting male circumcision (MC) as an intervention for reducing the risk of heterosexually acquired HIV infection was made by dissemination of the results of three studies in Africa. The WHO/UNAIDS recommendation for MC for countries like India, where the epidemic in concentrated in high-risk groups, advocates MC for specific population groups such as men at higher risk for HIV acquisition. A multicentre qualitative study was conducted in four geographically distinct districts (Belgaum, Kolkata, Meerut and Mumbai) in India during June 2009 to June 2011. Two categories of health care providers: Registered Healthcare Providers (RHCPs) and traditional circumcisers were interviewed by trained research staff who had received master's level education using interview guides with probes and open-ended questions. Respondents were selected using purposive sampling. A comparative analysis of the perspectives of the RHCP vs. traditional circumcisers is presented. Representatives of both categories of providers expressed the need for Indian data on MC. Providers feared that promoting circumcision might jeopardize/undermine the progress already made in the field of condom promotion. Reservation was expressed regarding its adoption by Hindus. Behavioural disinhibition was perceived as an important limitation. A contrast in the practice of circumcision was apparent between the traditional and the trained providers. MC should be mentioned as a part of comprehensive HIV prevention services in India that includes HIV counselling and testing, condom distribution and diagnosis and treatment of sexually transmitted infections. It should become an issue of informed personal choice rather than ethnic identity. 相似文献
103.
104.
Gaurav Kumar Upadhyaya Ajay Shukla Vijay Kumar Jain Skand Sinha R.K. Arya Ananta Kumar Naik 《Journal of Clinical Orthopaedics and Trauma》2016,7(1):45-49
Fracture of isolated spinous processes at multiple levels is a rare injury. Herein, we present a 45-year-old male with cervical pain and swelling following a road traffic accident. Computerized tomography and magnetic resonance imaging revealed fractures of spinous process from C7 to D6 vertebra. The patient was managed with rest, analgesics and immobilization. At the 1-year follow-up, the patient is doing well without any neurological problem. 相似文献
105.
106.
107.
Cutaneous features of the protean disease lupus erythematous (LE) constitute 4 of 11 diagnostic criteria for systemic lupus erythematosus (SLE) and are exhibited by approximately 3/4 of patients during the course of their disease. Because the pathogenesis of LE is multifactorial and polygenic, many of the details of the pathogenesis remain unclear. We review here the clinical features of cutaneous lupus and recent genetic data that elucidate potential candidate genes for both cutaneous lupus erythematosus (CLE) and SLE. We discuss advances in elucidating the autoimmune pathogenesis of CLE and SLE. Furthermore, promising experimental therapies based on these advances are reviewed in the context of B cell directed therapies, T cell directed therapies, disruption of B and T cell interactions, cytokine directed therapies and finally, end-effector targeted therapies. 相似文献
108.
Pawan Sinha Margaret M. Kjelgaard Tapan K. Gandhi Kleovoulos Tsourides Annie L. Cardinaux Dimitrios Pantazis Sidney P. Diamond Richard M. Held 《Proceedings of the National Academy of Sciences of the United States of America》2014,111(42):15220-15225
A rich collection of empirical findings accumulated over the past three decades attests to the diversity of traits that constitute the autism phenotypes. It is unclear whether subsets of these traits share any underlying causality. This lack of a cohesive conceptualization of the disorder has complicated the search for broadly effective therapies, diagnostic markers, and neural/genetic correlates. In this paper, we describe how theoretical considerations and a review of empirical data lead to the hypothesis that some salient aspects of the autism phenotype may be manifestations of an underlying impairment in predictive abilities. With compromised prediction skills, an individual with autism inhabits a seemingly “magical” world wherein events occur unexpectedly and without cause. Immersion in such a capricious environment can prove overwhelming and compromise one’s ability to effectively interact with it. If validated, this hypothesis has the potential of providing unifying insights into multiple aspects of autism, with attendant benefits for improving diagnosis and therapy. 相似文献
109.
110.
Bindey Kumar Prem Kumar Sanjay Kumar Sinha Neelam Sinha Zaheer Hasan Vinit Kumar Thakur Utpal Anand Rajiv Nayan Priyadarshi Manish Mandal 《International journal of surgery case reports》2013,4(4):425-428
INTRODUCTIONForeign bodies in the urogenital tract are not uncommon. Hairpins, glass rods, umbilical tapes, ball point pen are described in lower urogenital tract. Retained gauze piece (gossypiboma) in posterior urethra may cause diagnostic dilemma. Symptoms and investigations may mimic stricture of posterior urethra.PRESENTATION OF CASETwo cases of retained gauze pieces in the urethra are described here. The micturating cystourethrogram was suggestive of posterior urethral stricture.DISCUSSIONTwo cases described here had retained gauze piece as a cause of filling defect and abnormal appearance in the micturating cystourethrogram. Gossypiboma may be a possibility where posterior urethral stricture are seen after previous surgery in paediatric age group.CONCLUSIONIn the setting of previous urogenital surgery gossypiboma should be kept in the differential diagnosis where posterior urethral stricture are seen in the paediatric age group. 相似文献