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   1048篇
  免费   65篇
  国内免费   1篇
耳鼻咽喉   28篇
儿科学   118篇
妇产科学   31篇
基础医学   95篇
口腔科学   24篇
临床医学   104篇
内科学   244篇
皮肤病学   23篇
神经病学   29篇
特种医学   113篇
外科学   82篇
综合类   18篇
预防医学   36篇
眼科学   8篇
药学   77篇
中国医学   1篇
肿瘤学   83篇
  2022年   22篇
  2021年   13篇
  2020年   12篇
  2019年   25篇
  2018年   34篇
  2017年   28篇
  2016年   12篇
  2015年   36篇
  2014年   17篇
  2013年   56篇
  2012年   37篇
  2011年   38篇
  2010年   54篇
  2009年   31篇
  2008年   28篇
  2007年   30篇
  2006年   24篇
  2005年   20篇
  2004年   15篇
  2003年   14篇
  2002年   17篇
  2001年   16篇
  2000年   10篇
  1999年   12篇
  1998年   23篇
  1997年   32篇
  1996年   28篇
  1995年   32篇
  1994年   25篇
  1993年   40篇
  1992年   14篇
  1991年   18篇
  1990年   34篇
  1989年   26篇
  1988年   23篇
  1987年   23篇
  1986年   23篇
  1985年   21篇
  1984年   8篇
  1983年   9篇
  1982年   7篇
  1981年   18篇
  1980年   10篇
  1979年   6篇
  1978年   13篇
  1977年   12篇
  1976年   17篇
  1975年   11篇
  1974年   8篇
  1973年   6篇
排序方式: 共有1114条查询结果,搜索用时 0 毫秒
41.
Lasers in Medical Science - Patients with juvenile idiopathic arthritis (JIA) always experience persistent pain and stiffness which induces muscle weakness, fatigue, and functional limitations....  相似文献   
42.
43.
Neurocognitive outcome affects the quality of life of ALL survivors. This study is aimed to assess the prevalence of neurocognitive dysfunction by psychometric and imaging tools in survivors of childhood ALL, treated with 3 different protocols and the effect of time elapsed since the end of chemotherapy. Sixty-two ALL survivors aged 6–18 years and treated in the period 1997–2007 and 60 healthy age and sex matched controls were subjected to neurocognitive testing using Wechsler Intelligence Scale for Children, Benton visual retention (BVRT) and Trail Making test (TMT), followed by diffusion weighed and diffusion tensor MRI for calculation of fraction anisotropy (FA). Survivors underwent revision of protocol and type of CNS therapy. Three different protocols were used: modified BFM 83, BFM 90, and CCG. Survivors treated with modified CCG protocol showed a significant decrease in all cognitive tests compared to control (p<.05); BFM 90 group had a significant lower IQ and longer TMT compared to both control and BFM 83 group and no significant difference was found in results of cognitive tests between BFM 83 and control group. Frontal FA was lower in CCG treated group compared to control, BFM 90 and BFM 83 groups (p<.05); meanwhile it was significantly lower in BFM 90 and BFM 83 groups compared to control group. We concluded that patients treated with modified CCG protocol showed the worst neurocognitive outcome among three assessed protocols. Frontal lobe FA might be an early marker for predicting the neurotoxicity in childhood ALL survivors.  相似文献   
44.
45.
Photorefractive keratectomy (PRK) is considered a safe approach laser procedure with a clinical significance in correcting myopia results. PRK requires removing the whole superficial epithelium. The integrity of the epithelial basement membrane and the deposition of abnormal extracellular matrix can put the cornea in a probable situation for corneal haze formation. Mitomycin C (MMC) is applied after excimer laser ablation as a primary modulator for wound healing, limiting corneal haze formation. We aim to summarize the outcomes of MMC application after laser ablation. We searched Scopus, PubMed, Cochrane CENTRAL, and Web of Science till December 2020 using relevant keywords. The data were extracted and pooled as mean difference (MD) or risk ratio (RR) with a 95% confidence interval (CI), using Review Manager software (version 5.4). Our analysis demonstrated a statistically significant result for MMC application over the control group in terms of corneal haze formation postoperatively (RR = 0.29, 95% CI: [0.19, 0.45], P < 0.00001). Regarding corrected distance visual acuity (CDVA), no significant difference was observed between the MMC group and the control group (MD = 0.02; 95% CI: [-0.04, 0.07]; P = 0.56). Regarding the uncorrected distance visual acuity (UDVA), the analysis favored the MMC application with (MD -0.03, 95% CI: [-0.06, -0.00]; P = 0.05). There was no statistically significant increase in complications with MMC. In conclusion, MMC application after PRK is associated with a lower incidence of corneal haze formation with no statistically significant side effects. The long term effect can show improvement regarding UDVA favoring MMC. However, there is no significant effect of MMCs application regarding CDVA, and SE.  相似文献   
46.
Background Hereditary pancreatitis is an important cause of chronic pancreatitis, which may result in endocrine and exocrine failure. This may necessitate simultaneous pancreas and kidney transplant (SPK). Bladder drainage of the exocrine secretions may cause problems. Aim To report one such case and its surgical correction. Methods A 20-year-old male with insulin-dependent diabetes mellitus secondary to idiopathic chronic pancreatitis had a SPK with bladder drainage. Urological and metabolic complications secondary to the drainage of pancreatic secretions, rich in proteolytic enzymes required convertion from bladder to enteric drainage. Results He was able to discontinue his pancreatic enzyme supplements, ceased to have steatorrhoea and gained weight. He was referred to the €pean Registry of Hereditary Pancreatitis and Familial Pancreatic Cancer (€PAC), hereditary pancreatitis was confirmed by genetic analysis. Conclusion Enteric-drained pancreas transplantation is a successful treatment for exocrine as well as endocrine pancreatic failure and should be considered as a treatment option in patients with chronic pancreatitis.  相似文献   
47.
48.
49.
50.
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