首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   4161篇
  免费   239篇
  国内免费   23篇
耳鼻咽喉   52篇
儿科学   226篇
妇产科学   95篇
基础医学   596篇
口腔科学   91篇
临床医学   349篇
内科学   862篇
皮肤病学   101篇
神经病学   299篇
特种医学   97篇
外科学   552篇
综合类   77篇
一般理论   2篇
预防医学   225篇
眼科学   186篇
药学   267篇
中国医学   18篇
肿瘤学   328篇
  2024年   6篇
  2023年   74篇
  2022年   131篇
  2021年   223篇
  2020年   130篇
  2019年   164篇
  2018年   203篇
  2017年   155篇
  2016年   184篇
  2015年   147篇
  2014年   210篇
  2013年   254篇
  2012年   368篇
  2011年   333篇
  2010年   220篇
  2009年   152篇
  2008年   249篇
  2007年   222篇
  2006年   195篇
  2005年   178篇
  2004年   173篇
  2003年   142篇
  2002年   119篇
  2001年   20篇
  2000年   20篇
  1999年   17篇
  1998年   20篇
  1997年   18篇
  1996年   9篇
  1995年   21篇
  1994年   6篇
  1993年   7篇
  1992年   5篇
  1991年   9篇
  1990年   7篇
  1989年   3篇
  1988年   3篇
  1987年   2篇
  1986年   2篇
  1984年   2篇
  1976年   4篇
  1970年   2篇
  1969年   1篇
  1968年   1篇
  1967年   1篇
  1946年   1篇
  1945年   1篇
  1943年   1篇
  1940年   1篇
  1930年   1篇
排序方式: 共有4423条查询结果,搜索用时 15 毫秒
81.
82.
83.
84.
Treatment of metastatic liver disease is at the crossroads of an evolutionary transformation with more and more reports reiterating the benefits of resectional therapy in various cancers. A quest for application of laparoscopic approaches to the management of liver metastasis has arisen due to the projected benefits of less morbidity, early recovery, and equivalent oncological outcome in selected malignancies. However, the diverse and heterogenous data on indications, operative technique, and outcome evaluation make a comparative analysis of these studies difficult. This review is an appraisal of technique and outcome of minimally invasive liver resection as reported in the current literature with special reference to treatment of metastatic colorectal cancers.  相似文献   
85.
86.
87.
Congenital arterioportal fistulae in the liver are rare malformations which can lead to portal hypertension. We report a hepatic arterioportal fistula in a neonate who presented with intestinal hypoperfusion. Computerised tomography angiography showed a fistulous communication between the left hepatic artery and portal vein with hypoperfusion of small and large bowel. A formal left hepatectomy was done followed by clinical improvement and reduction in portal venous pressures. The case and the literature pertaining to it are discussed.  相似文献   
88.
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences - The aim of this study was to develop PCR assay for simultaneous detection of tissues from cattle and buffalo...  相似文献   
89.
Neonatal resuscitation is a coordinated, team-based series of timed sequential steps that focuses on a transitional physiology to improve perinatal and neonatal outcomes. The practice of neonatal resuscitation has evolved over time and continues to be shaped by emerging evidence as well as key opinions. We present the revised Neonatal Resuscitation Guidelines for Singapore 2021. The recommendations from the International Liaison Committee on Resuscitation Neonatal Task Force Consensus on Science and Treatment Recommendations (2020) and guidelines from the American Heart Association and European Resuscitation Council were compared with existing guidelines. The recommendations of the Neonatal Subgroup of the Singapore Resuscitation and First Aid Council were derived after the work group discussed and appraised the current available evidence and their applicability to local clinical practice.  相似文献   
90.
BackgroundAutoimmune hypophysitis is the consequence of an immune-mediated inflammation of the pituitary gland, which is rare, and most frequently occurs in females during postpartum periods. It usually responds well to corticosteroid treatment with reported resolution of the pituitary mass lesion.Case ReportA 51 years male presented with a one-month history of lethargy, headache, nausea, proximal muscle weakness with intermittent flushing. He was a diabetic with metformin 500mg twice daily. No other remarkable medical history or family history of autoimmune disease. On examination, he had no neurological deficit with a normal visual field. His initial biochemical evaluation showed features of secondary hypothyroidism as evidenced by low free FT4 and suppressed TSH with normal electrolytes. The subsequent evaluation of his hormonal profile revealed panhypopituitarism. Contrast MRI of pituitary showed an enhanced homogenous mass and minimal stalk thickening with a dural tail and preserved posterior bright spot. He was managed with glucocorticoid 20 mg once daily for two weeks along with levothyroxine and testosterone replacement. After two weeks of treatment, he improved clinically. Repeat MRI imaging of the pituitary showed complete resolution of the homogenous mass.ConclusionAlthough autoimmune hypophysitis is rare in males, a careful clinical history with necessary hormonal investigations is required for the suspicion about the inflammatory pituitary disorders This current case highlights glucocorticoid as the primary modality of treatment and the need for long-term follow-up with periodic clinical assessment.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号