全文获取类型
收费全文 | 1657篇 |
免费 | 97篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 20篇 |
儿科学 | 59篇 |
妇产科学 | 32篇 |
基础医学 | 169篇 |
口腔科学 | 31篇 |
临床医学 | 117篇 |
内科学 | 297篇 |
皮肤病学 | 33篇 |
神经病学 | 109篇 |
特种医学 | 40篇 |
外科学 | 368篇 |
综合类 | 37篇 |
一般理论 | 9篇 |
预防医学 | 121篇 |
眼科学 | 28篇 |
药学 | 165篇 |
中国医学 | 20篇 |
肿瘤学 | 104篇 |
出版年
2024年 | 2篇 |
2023年 | 17篇 |
2022年 | 55篇 |
2021年 | 84篇 |
2020年 | 59篇 |
2019年 | 80篇 |
2018年 | 80篇 |
2017年 | 44篇 |
2016年 | 48篇 |
2015年 | 54篇 |
2014年 | 81篇 |
2013年 | 99篇 |
2012年 | 146篇 |
2011年 | 138篇 |
2010年 | 75篇 |
2009年 | 65篇 |
2008年 | 92篇 |
2007年 | 90篇 |
2006年 | 80篇 |
2005年 | 79篇 |
2004年 | 58篇 |
2003年 | 47篇 |
2002年 | 36篇 |
2001年 | 26篇 |
2000年 | 40篇 |
1999年 | 6篇 |
1998年 | 6篇 |
1997年 | 2篇 |
1996年 | 3篇 |
1995年 | 5篇 |
1994年 | 7篇 |
1993年 | 3篇 |
1992年 | 4篇 |
1991年 | 5篇 |
1990年 | 3篇 |
1989年 | 3篇 |
1988年 | 1篇 |
1987年 | 5篇 |
1986年 | 5篇 |
1985年 | 2篇 |
1984年 | 4篇 |
1983年 | 5篇 |
1982年 | 1篇 |
1981年 | 2篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1976年 | 2篇 |
1975年 | 1篇 |
1973年 | 2篇 |
1969年 | 1篇 |
排序方式: 共有1759条查询结果,搜索用时 312 毫秒
91.
Deniz Altinok Sheena Saleem Zaixiang Zhang Lisa Markman Wilbur Smith 《Pediatric radiology》2009,39(3):290-292
Retinal hemorrhage is a well-recognized manifestation of child abuse found in many babies with shaken baby syndrome. The presence
of retinal hemorrhage is generally associated with more severe neurological damage and a worse clinical outcome. MR imaging
findings of retinal hemorrhages are not well described in the pediatric literature. We present a 6-month-old boy with new-onset
seizures, subdural hemorrhage and bilateral retinal hemorrhages that were detected by MRI and confirmed by indirect ophthalmoscopy.
This case demonstrates the MR imaging findings of retinal hemorrhages and the importance of radiologists being able to recognize
these specific imaging features. 相似文献
92.
Objective
To determine the frequency and associated risk factors of hypomagnesemia in pediatric intensive care unit on admission in a developing country. 相似文献93.
94.
Muhammad Rizwan Khan Taimur Saleem Tanveer Ul Haq Kanwal Aftab 《Hepatobiliary & Pancreatic Diseases International》2011,(1)
BACKGROUND:Focal nodular hyperplasia,a benign hepatic tumor,is usually asymptomatic.However,rarely the entity can cause symptoms,mandating intervention. METHOD:We present a case of focal nodular hyperplasia of the liver,which caused a considerable diagnostic dilemma due to its atypical presentation. RESULTS:A 29-year-old woman presented with a 15-year history of a progressively increasing mass in the right upper quadrant which was associated with pain and emesis. Examination showed a firm,mobile mass palpab... 相似文献
95.
96.
M.A. Mathew A.K. Saha T. Saleem N. Saddozai I.F. Hutchinson A. Nejim 《Breast (Edinburgh, Scotland)》2010,19(1):28-32
Pre-operative lymphoscintigram for axillary sentinel lymph node biopsy (SLNB) may not be required for successful SLNB. The 117 consecutive patients who underwent SLNB had pre-operative lymphoscintigraphy. The operating surgeon was blinded to the results of the lymphoscintigram before SLNB. After SLNB was complete, the surgeon was unblinded to the results of the lymphoscintigram; re-exploration carried out if more nodes were predicted on the lymphoscintigram. 116 patients (99%) had successful SLNB before unblinding. In 85 patients (73%), operative findings corresponded with scintigraphic findings. In 26 patients (22%), the lymphoscintigram predicted more sentinel nodes than had been found; further nodes were identified and excised in only 4 patients (3%). None were positive for cancer. SLNB was successful in 99% of cases without pre-operative lymphoscintigraphy. Only 3% of patients had further nodes identified as a result of the lymphoscintigram. Pre-operative lymphoscintigraphy does not improve the ability to perform axillary SLNB during breast cancer surgery. 相似文献
97.
98.
99.
100.