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   167篇
  免费   14篇
耳鼻咽喉   2篇
儿科学   5篇
妇产科学   4篇
基础医学   18篇
口腔科学   2篇
临床医学   13篇
内科学   32篇
皮肤病学   13篇
神经病学   31篇
特种医学   3篇
外科学   11篇
综合类   1篇
预防医学   20篇
眼科学   1篇
药学   13篇
肿瘤学   12篇
  2023年   4篇
  2022年   12篇
  2021年   20篇
  2020年   7篇
  2019年   16篇
  2018年   19篇
  2017年   7篇
  2016年   12篇
  2015年   3篇
  2014年   9篇
  2013年   7篇
  2012年   15篇
  2011年   16篇
  2010年   4篇
  2009年   5篇
  2008年   5篇
  2007年   4篇
  2006年   6篇
  2005年   2篇
  2003年   1篇
  2002年   1篇
  2000年   2篇
  1999年   1篇
  1996年   1篇
  1994年   1篇
  1993年   1篇
排序方式: 共有181条查询结果,搜索用时 93 毫秒
171.
To test the utility of a preconception checklist tool in identifying preconception health needs of women in three countries; China, Lebanon and the Philippines. An academic medical center within each country participated in the development and testing of a preconception checklist tool, which was administered over a 6 month period to selected target groups in each country. The checklist provided valuable data on the preconception health of 6,530 women. Aggregated data identified common preconception health needs across all countries, including provision of modern contraceptives and adequate immunization coverage; HIV and STI screening; treatment for anemia; and counseling for maintenance of a healthy weight. A preconception checklist tool was found to be useful in distinct cultural settings. The study was a pilot. Future steps include validation and standardization of the checklist, data from which could be used to help shape preconception care policies and implementation strategies.  相似文献   
172.
Methotrexate (MTX) is one of the most commonly used medicines in the treatment of psoriatic arthritis. The drug can produce steatosis and cirrhosis. Autoimmune hepatitis is a rare and serious adverse effect. We describe the case of a 53-year-old woman who developed autoimmune hepatitis after a long-term use of MTX for psoriatic arthritis. Hepatitis was completely resolved 4 months after stopping this drug. The pathophysiologic mechanisms of a drug-induced autoimmunity are unclear and complex. This report confirms the need to monitor liver enzymes carefully in patients using long-term treatment with MTX for psoriasis or rheumatoid arthritis.KEY WORDS: Autoimmune hepatitis, drug-induced autoimmunity, methotrexate, psoriatic arthritis  相似文献   
173.
Needle and Syringe Exchange Programs (NSP) prevent infectious diseases in community and prisons. Less than 1 % of prisons worldwide have NSP. One barrier is organizational concern for needle stick injuries from used syringes. Given these concerns, we introduced retractable syringes into our prison NSP and evaluated 1) injection drug users’ experiences with retractable syringes and 2) beliefs and knowledge about NSP among prison officers (PO) and healthcare staff (HS). In 2010, we replaced usual syringes with retractable needle devices in the prison of Champ-Dollon, Geneva, Switzerland. We examined demographics, clinical profiles and NSP use among NSP participants, and asked about ease and safety of retractable syringes use in interviews. We distributed questionnaires to PO and HS, to assess knowledge and general opinions on NSP. The majority of participants expressed that retractable syringes were acceptable alternatives, but needed improvements. Of the questionnaires, 90.3 % of PO and 9.6 % of HS were still concerned about misuse of soiled syringes as weapons. Improving the quality and ease of use of use may increase the acceptance of retractable syringes. Continuing to address PO and HS safety concerns is an important step towards more disseminated NSP implementation and useful innovation.  相似文献   
174.
175.
Some researchers suggest that the effect of smoking on health depends on socioeconomic status; while others purport that the effect of smoking on health is similar across all social groups. This question of the interaction between smoking and socioeconomic status is important to an improved understanding of the role of smoking in the social gradient in mortality and morbidity. For this purpose, we examined whether educational level modifies the association between smoking and mortality. Information on smoking by age, gender and educational level was extracted from the Belgian Health Interview Surveys of 1997 and 2001. The mortality follow up of the survey respondents was reported until December 2010. A Poisson regression was used to estimate the hazard ratio of mortality for heavy smokers, light smokers, and former smokers compared with never smokers by educational level controlling for age and other confounders. Among men, we found lower hazard ratios in the lowest educational category compared with the intermediate and high-educated categories. For instance, for heavy smokers, the hazard ratios were 2.59 (1.18-5.70) for those with low levels of education, 4.03 (2.59-6.26) for those with intermediate levels of education and 3.78 (1.52-9.43) for the highly educated. However, the interaction between smoking and education was not statistically significant. For women, the hazard ratios were not significant for any educational category except for heavy smokers with intermediate levels of education. Also here the interaction was not statistically significant. Our results support the hypothesis that educational attainment does not substantially influence the association between smoking and mortality.  相似文献   
176.

Background

Skin cancers (SC) are complex diseases that develop from complex combinations of genetic and environmental risk factors. One of the most severe and rare genetic diseases predisposing to SC is the Xeroderma pigmentosum (XP) syndrome.

Objectives

First, to identify the genetic etiology of XP and to better classify affected patients. Second, to provide early molecular diagnosis for pre-symptomatic patient and finally to offer genetic counseling for related individuals.

Methods

Whole Exome Sequencing (WES) and Run Of Homozygosity (ROH) were performed for two patients belonging to two different multiplex consanguineous families. The identified mutations were confirmed by Sanger sequencing and researched in ten Tunisian families including a total of 25 affected individuals previously suspected as having XP group V (XP-V) form. All patients had mild dermatological manifestations, absence of neurological abnormalities and late onset of skin tumors.

Results

Screening for functional variations showed the presence of the ERCC2 p.Arg683Gln in XP14KA-2 patient and a novel mutation, DDB2 p. (Lys381Argfs*2), in XP51-MAH-1 patient. Sanger sequencing and familial segregation showed that the ERCC2 mutation is present at a homozygous state in 10 affected patients belonging to 3 families. The second mutation in DDB2, is present at a homozygous state in 5 affected cases belonging to the same family. These two mutations are absent in the remaining 10 affected patients. The ERCC2 c.2048G > A mutation is present in a medium ROH region (class B) suggesting that it mostly arises from ancient relatedness within individuals. However, the c.1138delG DDB2 mutation is present in a large ROH region (class C) suggesting that it arises from recent relatedness.

Conclusion

To our knowledge, this is the first study that identifies XP-D and XP-E complementation groups in Tunisia. These two groups are very rare and under-diagnosed in the world and were not reported in North Africa.  相似文献   
177.
Annular elastolytic giant cell granuloma (AEGCG) is a benign skin disorder, with, unknown cause. It appears as erythematous papules or annular plaques. Few challenging cases of AEGCG have been reported in the literature. We describe a rare clinical presentation of AEGCG mimicking cutaneous sarcoidosis.  相似文献   
178.
Herein, we report a rare case of extensive ISC. It affects dark‐colored skin men aged from 20 to 40 years old, suggesting an ethnic susceptibility. Pathogenesis of scrotal calcinosis remains controversial.  相似文献   
179.
180.
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