全文获取类型
收费全文 | 212138篇 |
免费 | 4710篇 |
国内免费 | 55篇 |
专业分类
耳鼻咽喉 | 1575篇 |
儿科学 | 8029篇 |
妇产科学 | 3747篇 |
基础医学 | 21496篇 |
口腔科学 | 2080篇 |
临床医学 | 16953篇 |
内科学 | 36978篇 |
皮肤病学 | 1262篇 |
神经病学 | 20070篇 |
特种医学 | 9976篇 |
外国民族医学 | 1篇 |
外科学 | 33972篇 |
综合类 | 3371篇 |
一般理论 | 32篇 |
预防医学 | 22459篇 |
眼科学 | 3293篇 |
药学 | 12171篇 |
中国医学 | 671篇 |
肿瘤学 | 18767篇 |
出版年
2023年 | 287篇 |
2022年 | 396篇 |
2021年 | 906篇 |
2020年 | 535篇 |
2019年 | 905篇 |
2018年 | 22805篇 |
2017年 | 17990篇 |
2016年 | 20128篇 |
2015年 | 1712篇 |
2014年 | 1920篇 |
2013年 | 2383篇 |
2012年 | 9236篇 |
2011年 | 23228篇 |
2010年 | 19980篇 |
2009年 | 12653篇 |
2008年 | 21319篇 |
2007年 | 23627篇 |
2006年 | 2423篇 |
2005年 | 3990篇 |
2004年 | 5005篇 |
2003年 | 5891篇 |
2002年 | 4015篇 |
2001年 | 1294篇 |
2000年 | 1349篇 |
1999年 | 984篇 |
1998年 | 591篇 |
1997年 | 524篇 |
1996年 | 420篇 |
1995年 | 370篇 |
1994年 | 380篇 |
1993年 | 328篇 |
1992年 | 668篇 |
1991年 | 662篇 |
1990年 | 718篇 |
1989年 | 643篇 |
1988年 | 509篇 |
1987年 | 517篇 |
1986年 | 409篇 |
1985年 | 458篇 |
1984年 | 362篇 |
1983年 | 312篇 |
1982年 | 250篇 |
1980年 | 223篇 |
1979年 | 286篇 |
1978年 | 244篇 |
1977年 | 199篇 |
1976年 | 200篇 |
1974年 | 246篇 |
1973年 | 202篇 |
1969年 | 189篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Michael E Egger Joanna M Ohlendorf Charles R Scoggins Kelly M McMasters Robert C G Martin II 《HPB : the official journal of the International Hepato Pancreato Biliary Association》2015,17(9):839-845
BackgroundThe aim of this paper is to assess the current state of quality and outcomes measures being reported for hepatic resections in the recent literature.MethodsMedline and PubMed databases were searched for English language articles published between 1 January 2002 and 30 April 2013. Two examiners reviewed each article and relevant citations for appropriateness of inclusion, which excluded papers of liver donor hepatic resections, repeat hepatectomies or meta-analyses. Data were extracted and summarized by two examiners for analysis.ResultsFifty-five studies were identified with suitable reporting to assess peri-operative mortality in hepatic resections. In only 35% (19/55) of the studies was the follow-up time explicitly stated, and in 47% (26/55) of studies peri-operative mortality was limited to in-hospital or 30 days. The time period in which complications were captured was not explicitly stated in 19 out of 28 studies. The remaining studies only captured complications within 30 days of the index operation (8/28). There was a paucity of quality literature addressing truly patient-centred outcomes.ConclusionQuality outcomes after a hepatic resection are inconsistently reported in the literature. Quality outcome studies for a hepatectomy should report mortality and morbidity at a minimum of 90 days after surgery. 相似文献
3.
4.
5.
6.
Gastroesophageal reflux is the most common benign disorder of the esophagus and laparoscopic Nissen fundoplication has become the standard surgical treatment for its treatment. In our area, where the use of bougie calibration is debatable, postoperative dysphagia is encountered often after this surgery although it is usually not permanent. The aim of this study was to investigate the effect of using a soft silicone tube 39 F in diameter for esophageal calibration during laparoscopic Nissen fundoplication on the incidence of postoperative dysphagia. We divided cases scheduled to undergo laparoscopic Nissen fundoplication between January 2009 and November 2010 into two groups, each consisting 25 patients. Esophageal calibration with a 39 F silicone orogastric tube was used for the first group while there was no operative calibration in the second group. The surgical duration was recorded; the presence and severity of the postoperative dysphagia was calculated by using a dysphagia severity scoring system during the 1-year postoperative follow-up. The dysphagia severity scores were significantly lower in group 1 than group 2 on the postoperative second day and at the end of the first week and first month. We did not find a significant difference at the end of the 6-month and first year. There was also no significant difference regarding surgery duration. The use of a soft orogastric tube 39 F in diameter for esophagus calibration during laparoscopic Nissen fundoplication has significantly decreased the incidence of postoperative transient dysphagia without affecting the duration of surgery. Although dysphagia gradually resolves in the majority of patients, a safe and easy calibration method for its prevention is worth developing, and we believe that the use of our method in larger series could be beneficial. 相似文献
7.
8.
Pancreatic Panniculitis Associated with Allograft Pancreatitis and Rejection in a Simultaneous Pancreas–Kidney Transplant Recipient 总被引:1,自引:0,他引:1
J. L. Pike J. C. Rice R. L. Sanchez E. B. Kelly B. C. Kelly 《American journal of transplantation》2006,6(10):2502-2505
Pancreatic panniculitis is an uncommon condition that can occur in association with pancreatic disease. We present a case of pancreatic panniculitis in a female pancreas-kidney transplant recipient 5 months post-transplant. The patient was on standard immunosuppressive medications and had acute rejection of her renal allograft. The diagnosis of allograft pancreatitis and rejection presenting with pancreatic panniculitis was supported clinically, histopathologically and by laboratory and imaging data. This is the fourth case of pancreatic panniculitis occurring in a transplant recipient and the first in a simultaneous pancreas-kidney transplant recipient. It is also the first case associated with allograft rejection. Clinicians should be aware that pancreatic panniculitis may be a manifestation of underlying allograft pancreatic disease. 相似文献
9.
10.