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   323篇
  免费   30篇
  国内免费   1篇
耳鼻咽喉   1篇
儿科学   12篇
妇产科学   12篇
基础医学   32篇
口腔科学   5篇
临床医学   43篇
内科学   41篇
皮肤病学   7篇
神经病学   26篇
特种医学   7篇
外科学   52篇
综合类   6篇
预防医学   27篇
眼科学   14篇
药学   47篇
中国医学   2篇
肿瘤学   20篇
  2024年   2篇
  2023年   4篇
  2022年   15篇
  2021年   23篇
  2020年   14篇
  2019年   22篇
  2018年   26篇
  2017年   22篇
  2016年   27篇
  2015年   24篇
  2014年   23篇
  2013年   22篇
  2012年   40篇
  2011年   31篇
  2010年   9篇
  2009年   11篇
  2008年   13篇
  2007年   8篇
  2006年   6篇
  2005年   5篇
  2004年   1篇
  2003年   1篇
  2002年   2篇
  1998年   1篇
  1995年   1篇
  1993年   1篇
排序方式: 共有354条查询结果,搜索用时 0 毫秒
351.
Psoas tuberculosis abscess is very rarely detected primarily without an adjacent vertebral cold abscess. Early diagnosis prevents unnecessary operations and life‐threatening complications.  相似文献   
352.
Human papillomavirus (HPV) is the causative agent of cervical cancer and a suspected agent for ovarian and endometrial cancers in women. It is associated with adverse outcomes during pregnancy. To date, there is no estimate of the prevalence of HPV infection in pregnant women at the regional and global levels. This study evaluated the global prevalence of HPV infection based on all observational studies that had reported the prevalence of HPV among pregnant women between January 1980 and December 2021 in PubMed/MEDLINE, Scopus, Web of Science, Embase, and SciELO databases. We utilised a random-effect model to determine the global prevalence and related risk factors of HPV infection. Between-studies heterogeneity was assessed using I2 statistic. Moreover, subgroup and meta-regression analyses were employed to assess the source of heterogeneity and the relationship between HPV prevalence and socio-demographic factors, respectively. Among 144 eligible studies comprising 189 datasets, the overall prevalence rates of HPV at the 95% confidence interval (CI) were estimated as 30.38% (26.88%–33.99%), 17.81% (9.81%–27.46%), 32.1% (25.09%–39.67%), 2.26% (0.1%–8.08%) and 25.5% (23.3%–27.8%) in cervico-vaginal, placenta, serum, amniotic fluid and urine samples, respectively. The highest prevalence rates were estimated for countries in the African region, while countries in the European and Eastern Mediterranean regions showed the lowest prevalence rates. HPV-16 and -18 were the most prevalent isolated strains. The pregnant women living with HIV and those with pregnancy disorders had significantly higher prevalence rates than general pregnant women (p < 0.05). The younger ages for first intercourse and pregnancy, multiple lifetime sexual partners, and lower education levels were primary risk factors for HPV infection. In conclusion, although the overall HPV prevalence varied markedly based on sampling sites and geographical locations, the highest prevalence rates were observed in less-developed countries. Our findings imply that implementing behavioural and therapeutic interventions as well as vaccination programs are crucial to prevent and reduce the current burden of HPV infection among pregnant women.  相似文献   
353.

Background

Acne vulgaris is a common skin disease that is more common in young population and it can be associated with some sequels after resolving the lesions. Post-inflammatory erythema is one of these complications that can be disturbing for patients and does not have any definite treatment. This study was aimed to evaluate the efficacy and safety of tranexamic acid (TA) as mesotherapy in treatment of post-acne erythema (PAE) treatment.

Method

This clinical trial study was performed in the dermatology clinic on 17 patients with persistent PAE (3 months after acne recovery). Two sessions of treatment were performed by a physician with 2-week intervals; TA was injected as mesotherapy into the right side of each patient's face as the case group, while the opposite side was used as the control group. A Visioface device was used to compare before and after treatment photographs of each side of the face in color mode with quantitative measures such as lesions count, area, and area percent.

Results

Finally, 15 patients completed treatment sessions. There were statistically significant differences in right side lesions before and after treatment with p-values of 0.047, 0.002, and 0.035 for count, area, and area percent, respectively. There was no significant difference before and after treatment in terms of count, area. and area-percent on the left side.

Conclusion

According to the results of this study, TA injection as mesotherapy for resolving PAE can be effective. However, due to small sample size, further studies are needed.  相似文献   
354.
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