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   6213篇
  免费   299篇
  国内免费   17篇
耳鼻咽喉   58篇
儿科学   174篇
妇产科学   207篇
基础医学   757篇
口腔科学   485篇
临床医学   342篇
内科学   1564篇
皮肤病学   109篇
神经病学   441篇
特种医学   180篇
外科学   913篇
综合类   46篇
一般理论   1篇
预防医学   305篇
眼科学   127篇
药学   286篇
中国医学   18篇
肿瘤学   516篇
  2023年   34篇
  2022年   65篇
  2021年   173篇
  2020年   95篇
  2019年   143篇
  2018年   160篇
  2017年   123篇
  2016年   150篇
  2015年   182篇
  2014年   252篇
  2013年   303篇
  2012年   522篇
  2011年   497篇
  2010年   293篇
  2009年   251篇
  2008年   414篇
  2007年   393篇
  2006年   359篇
  2005年   341篇
  2004年   330篇
  2003年   282篇
  2002年   264篇
  2001年   39篇
  2000年   21篇
  1999年   38篇
  1998年   57篇
  1997年   54篇
  1996年   53篇
  1995年   42篇
  1994年   43篇
  1993年   28篇
  1992年   25篇
  1991年   24篇
  1990年   20篇
  1989年   27篇
  1988年   20篇
  1987年   17篇
  1986年   23篇
  1985年   14篇
  1983年   15篇
  1982年   22篇
  1980年   15篇
  1979年   13篇
  1959年   20篇
  1958年   21篇
  1957年   28篇
  1956年   20篇
  1955年   24篇
  1954年   40篇
  1948年   13篇
排序方式: 共有6529条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
Journal of Digital Imaging - Vertebral Compression Fracture (VCF) occurs when the vertebral body partially collapses under the action of compressive forces. Non-traumatic VCFs can be secondary to...  相似文献   
5.
6.

Background Drug-related problems are mostly preventable or predictable circumstances that may impact on health outcomes. Clinical pharmacy activities such as medication therapy management can identify and solve these problems, with potential to improve medication safety and effectiveness. Objective To evaluate ability of medication therapy management service to detect drug-related problems and prevent adverse drug events. This study also aimed to assess the risk factors for drugrelated problem occurrence. Setting Medical intensive care unit of a public tertiary hospital in Brazil. Methods Patients were evaluated by a clinical pharmacist, who provided medication therapy management service. Detected drug-related problems were categorized according to the Pharmaceutical Care Network Europe methodology and analyzed in multinomial regression to identify risk factors. Main outcome measure Potential risk factors for drug-related problem occurrence. Results The proposed medication therapy management service allowed detection of 170 drug-related problems that had potential to reach patients causing harm and other 50 unavoidable adverse events. Drug-related problems identified were more often associated with antibacterial use, caused by improper combinations or inadequate drug dosage. These problems required interventions that were accepted by the multidisciplinary team, resulting in more than 85% adherence and total problem solving. Main risk factors identified were previous diagnosis of kidney injury (OR?=?8.38), use of midazolam (OR?=?7.96), furosemide (OR?=?5.87) and vancomycin (OR?=?4.82). Conclusion Medication therapy management proved to be an effective method not only for drug-related problem detection, but also for adverse drug event prevention, contributing to improve patient safety.

  相似文献   
7.
Associations among dating, sexual activity, gender, and adjustment were investigated in 2,273 Italian adolescents (54% female, ages 14 to 19 years) attending public high schools. After controlling for age and type of school attended, both being in a dating relationship and being male were associated with less alienation, more positive views of the self, and higher general expectations for success. Sexual activity interacted with both gender and dating status in predicting feelings of depression. For boys, there were no differences between youth who were sexually active and youth who were not; however, sexually active girls had higher levels of depressive symptoms than girls who were not sexually active. Among youth who were not sexually active, there were small differences between daters and nondaters; among sexually active youth, daters had lower levels of depression than nondaters. Gender differences in adolescents' experience of dating and sexual relationships and implications for adjustment are discussed.  相似文献   
8.
9.
A role for decorin in cutaneous wound healing and angiogenesis   总被引:2,自引:0,他引:2  
Decorin is known to influence tissue tensile strength and cellular phenotype. Therefore, decorin is likely to have an impact on tissue repair, including cutaneous wound healing. In this study, cutaneous healing of both excisional and incisional full‐thickness dermal wounds was studied in decorin‐deficient (Dcn?/?) animals. A statistically significant delay in excisional wound healing in the Dcn?/? mice occurred at 4 and 10 days postwounding and, in incisional wounds at 4, 10, and 18 days when compared with wild‐type (Dcn?/?) controls. Fibrovascular invasion into polyvinylalcohol sponges was significantly increased by day 18 in Dcn?/? mice relative to Dcn+/+ mice. The 18‐day sponge implants in the Dcn?/? mice showed a marked accumulation of biglycan when compared with the corresponding implants in Dcn+/+ mice. Thus, regulated production of decorin may serve as an excellent therapeutic approach for modifying impaired wound healing and harmful foreign body reactions.  相似文献   
10.
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