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   10321篇
  免费   251篇
  国内免费   186篇
耳鼻咽喉   287篇
儿科学   46篇
妇产科学   144篇
基础医学   1237篇
口腔科学   275篇
临床医学   1797篇
内科学   1048篇
皮肤病学   37篇
神经病学   223篇
特种医学   451篇
外科学   2165篇
综合类   519篇
现状与发展   1篇
一般理论   1篇
预防医学   807篇
眼科学   183篇
药学   543篇
  1篇
中国医学   207篇
肿瘤学   786篇
  2024年   7篇
  2023年   46篇
  2022年   93篇
  2021年   117篇
  2020年   85篇
  2019年   65篇
  2018年   67篇
  2017年   81篇
  2016年   77篇
  2015年   74篇
  2014年   127篇
  2013年   122篇
  2012年   457篇
  2011年   805篇
  2010年   413篇
  2009年   97篇
  2008年   566篇
  2007年   778篇
  2006年   823篇
  2005年   782篇
  2004年   931篇
  2003年   960篇
  2002年   994篇
  2001年   656篇
  2000年   797篇
  1999年   406篇
  1998年   127篇
  1997年   24篇
  1996年   19篇
  1995年   3篇
  1994年   14篇
  1993年   28篇
  1992年   8篇
  1991年   13篇
  1990年   12篇
  1989年   12篇
  1988年   6篇
  1987年   9篇
  1986年   6篇
  1985年   5篇
  1984年   8篇
  1983年   5篇
  1979年   6篇
  1977年   2篇
  1976年   2篇
  1975年   2篇
  1974年   2篇
  1972年   3篇
  1968年   2篇
  1966年   7篇
排序方式: 共有10000条查询结果,搜索用时 187 毫秒
81.
82.
Time course of healing of standard osseous defects by introduction of polyacrylamide gel (PAG)-based materials was studied in rat experiments. PAG did not prevent the formation of soft-tissue and osseous regenerate in bone defects. Addition of hydroxyapatite, bactericidal agent, and lysozyme to PAG-based composition led in some cases to development of chronic inflammation and giant-cell reaction in osseous wound and to inhibition of the reparative processes.  相似文献   
83.
84.
Quality of life (QL) was studied in 112 patients with gastroenterological diseases: 29 cases of gastric ulcer (GU), 53 cases of duodenal ulcer (DU) and 30 cases of chronic pancreatitis (CP). QL was judged according to the test of the Cardiological Research Center of the RAMS. QL in the above gastroenterological diseases was related to restrictions in the diet, emotional and muscular load, long-term treatment. The integral quantitative indices of QL were worse in CP and GU than in DU, and deteriorated with the disease duration and severity. A close correlation was found between QL and subjective symptoms of the disease, especially pain syndrome. The proposed approach to qualitative and quantitative assessment of gastroenterological patients's quality of life adequately reflects this complex phenomenon and closely correlated with clinical evidence.  相似文献   
85.
86.
目的:研究脾切除对小鼠腹腔巨噬细胞数量和功能活性的影响。方法:术后4周获取腹腔常居巨噬细胞和炎症巨噬细胞,检测其数量、吞噬功能和一氧化氨水平。结果:与正常对照组和假手术组比较,脾切除组小鼠的2种巨噬细胞不仅数量明显减少,而且它们的吞噬功能和一氧化氮水平呈明显下降。结论:提示脾切除造成的单核吞噬细胞继发性炎症反应的捐伤和巨噬细胞功能活性的降低,可能是脾切除后(凶险性)感染的重要因素。  相似文献   
87.
Some 7950 patients have been treated at the traditional medicine department of the Consulting and Diagnostic Center N52, 2/3rds of them came after long and unsuccessful medicamental treatment. Psychotherapy, manual therapy and acupuncture-reflex methods were successful in 86-93% of cases. They are recommended for local clinics provided that the latter are properly equipped and stuffed.  相似文献   
88.
89.
The late latency components of visual evoked potentials (VEP) and the component P300 AEP were analyzed to evaluate their informative value in the process of mental function restoration in patient after long-term traumatic coma. VEP components with latencies of 70 to 320 msec were studied in 24 patients. Topographical mapping of the power of the study VEP components and components P300 was made by the peak amplitude. Long-term VEP components and component P300 were examined by the method of three-dimensional localization of equivalent dipole sources. In 16 patients with positive tendencies in the condition there was a stable localization of the maximum VEP power in the parietal, sagittal, and occipital regions, component P300 showed its maximum amplitude in the central and parietal regions in the left hemisphere. Eight patients with negative tendencies in the status had the maximum VEP and component P300 in the frontal and temporal regions, predominantly in the right hemisphere. The paper shows it important to evaluate not only time-amplitude parameters and analyzes the tomographic features of its formation in dynamics.  相似文献   
90.
15(2.4%) of 601 patients (392 have undergone transvesical adenomectomy, 111 had gunshot wound of the external genitalia and small pelvis organs, 98 had closed pelvic traumas, injuries of the urinary bladder and posterior urethra) were treated for persistent urinary fistulas with human allogenic fibroblasts growth cultures grown in the artificial medium. Before transplantation into the fistula tracts, the fibroblasts were grown in bioreactor on the microcarriers. Application of allogenic fibroblast growth culture has reduced hospital stay to 7.5 days. This method is simple and effective in inpatients. Use of allogenic fibroblasts allows to create bank of cell transplants for application in clinical practice.  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