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   170篇
  免费   8篇
儿科学   2篇
妇产科学   10篇
基础医学   17篇
口腔科学   2篇
临床医学   26篇
内科学   39篇
神经病学   7篇
特种医学   3篇
外科学   14篇
综合类   2篇
预防医学   34篇
眼科学   3篇
药学   12篇
中国医学   5篇
肿瘤学   2篇
  2024年   1篇
  2023年   1篇
  2022年   6篇
  2021年   7篇
  2020年   4篇
  2019年   4篇
  2018年   5篇
  2017年   1篇
  2016年   1篇
  2015年   6篇
  2014年   11篇
  2013年   8篇
  2012年   18篇
  2011年   13篇
  2010年   8篇
  2009年   5篇
  2008年   9篇
  2007年   12篇
  2006年   7篇
  2005年   5篇
  2004年   5篇
  2003年   5篇
  2002年   3篇
  2001年   2篇
  2000年   4篇
  1999年   2篇
  1998年   1篇
  1997年   1篇
  1994年   1篇
  1993年   1篇
  1991年   1篇
  1988年   3篇
  1985年   2篇
  1984年   2篇
  1983年   2篇
  1981年   1篇
  1979年   1篇
  1978年   2篇
  1974年   1篇
  1973年   1篇
  1970年   1篇
  1966年   1篇
  1963年   1篇
  1938年   1篇
  1932年   1篇
排序方式: 共有178条查询结果,搜索用时 15 毫秒
91.
Main partnerships represent one context in which HIV transmission may occur that has been insufficiently addressed to date for gay and bisexual men, but few studies have focused on the acceptability of couples-based voluntary HIV counseling and testing (CVCT) for male couples in the U.S. Our aim in this study was to explore the acceptability of CVCT among a national U.S. sample of 1,532 gay and bisexual men surveyed online using a sexual networking site. We examined the role of demographic (i.e., geographic region, age, relationship status, sexual orientation, race/ethnicity) and HIV risk (i.e., substance use, number of sexual partners, unprotected anal intercourse, sexual role identity, and sexual compulsivity) factors that may be associated with CVCT among the full sample and among partnered men separately. We found that single men expressed higher interest in CVCT than partnered men and that greater age was more strongly associated with lower interest in CVCT for partnered men than for single men. The intersection of sexual orientation and race/ethnicity was also significantly associated with CVCT interest, with a higher proportion of Black bisexual men being interested than White bisexual men. These findings suggest that the uptake of CVCT may be less impacted by HIV risk factors than by demographic factors and that young gay and bisexual men of color—for whom rates of HIV continue to rise—may be the group with the highest levels of interest in CVCT.  相似文献   
92.
93.
94.
ABSTRACT

Reconstruction of the anophthalmic socket allows the use of an ocular prosthesis and rehabilitation of facial appearance. Dermis-fat grafting is one option in volume augmentation of the anophthalmic socket and presents unique benefits, including increased surface area within the socket and the ability to grow with pediatric patients. Postoperative complications of this procedure are relatively common. Minor complications, such as graft hirsutism, keratinization, and conjunctival cysts or granulomas, are managed easily by observation or simple intervention. Major complications, such as graft atrophy, infection, or ulceration, may prevent good prosthesis fit and may require return to the operating room.  相似文献   
95.
Most studies of risky sexual behaviors of men who have sex with men (MSM) have been conducted in cities. Few have documented risky sexual behavior of rural men despite increases in rural HIV. Fewer have addressed stigma and risk. This study explored the effects of stigma on sexual risk behavior among rural MSM. We hypothesized that stigma emanating from families, health care providers, and the communities of rural MSM would indirectly affect their sexual risk behavior through their mental health status, specifically self-esteem and internalized homophobia. A convenience sample of 414 rural MSM obtained through political, health service, and social organizations completed an anonymous self-administered questionnaire. Over half of the men reported high-risk sexual behavior. Sensation seeking directly affected levels of sexual risk while the effects of stigma on sexual risk behavior were mediated by mental health variables. Stigma related to respondents' low self-esteem, and low internalized homophobia increased risk behavior.  相似文献   
96.
The emergence of multi- and extensively drug-resistant tuberculosis is a significant impediment to the control of this disease because treatment becomes more complex and costly. Reliable and timely drug susceptibility testing is critical to ensure that patients receive effective treatment and become noninfectious. Molecular methods can provide accurate and rapid drug susceptibility results. We used DNA sequencing to detect resistance to the first-line antituberculosis drugs isoniazid (INH), rifampin (RIF), pyrazinamide (PZA), and ethambutol (EMB) and the second-line drugs amikacin (AMK), capreomycin (CAP), kanamycin (KAN), ciprofloxacin (CIP), and ofloxacin (OFX). Nine loci were sequenced: rpoB (for resistance to RIF), katG and inhA (INH), pncA (PZA), embB (EMB), gyrA (CIP and OFX), and rrs, eis, and tlyA (KAN, AMK, and CAP). A total of 314 clinical Mycobacterium tuberculosis complex isolates representing a variety of antibiotic resistance patterns, genotypes, and geographical origins were analyzed. The molecular data were compared to the phenotypic data and the accuracy values were calculated. Sensitivity and specificity values for the first-line drug loci were 97.1% and 93.6% for rpoB, 85.4% and 100% for katG, 16.5% and 100% for inhA, 90.6% and 100% for katG and inhA together, 84.6% and 85.8% for pncA, and 78.6% and 93.1% for embB. The values for the second-line drugs were also calculated. The size and scope of this study, in numbers of loci and isolates examined, and the phenotypic diversity of those isolates support the use of DNA sequencing to detect drug resistance in the M. tuberculosis complex. Further, the results can be used to design diagnostic tests utilizing other mutation detection technologies.  相似文献   
97.
The research literature that rehabilitation clinicians need to be familiar with has become too large for anyone to read, and numerous published studies are too complex for many practitioners to understand and fruitfully use. One method to keep up with new findings is through systematic reviews. Systematic reviews can be effective tools that help guide rehabilitation practice by identifying the best research that provides the evidence for enhanced clinical decision-making. This article describes how systematic reviews are created, indicates where rehabilitation clinicians may find them, and refers to a resource that may be of use in evaluating their quality and applicability.  相似文献   
98.
International health experts agree that China is on the verge of an AIDS crisis. In response, the Chinese government initiated the "Four Frees and One Care" policy in 2003 to decrease economic barriers and increase access to antiretroviral therapies for people with HIV. However, long-term treatment success requires not only access, but high rates of medication adherence. This qualitative interview study with 29 persons receiving HIV care at Beijing's Ditan Hospital identified barriers to and facilitators of medication adherence. The interviews were guided by an a priori conceptual model of adherence with four components: access, knowledge about medications, motivation, and proximal cues to action. Barriers to adherence were related to stigma and fear of discrimination; the medications themselves (including side-effects and complicated dosing regimens); and other economic issues (i.e. costs of transportation, lab tests and hospitalizations). Facilitators included participants' strong will to live, use of electronic reminders and family support. These results support the conceptual model and suggest that successful interventions must minimize stigma as it negatively affects all components of the model for adherence.  相似文献   
99.
100.
During the past 20 years, contraceptive steroids have undergone significant changes as the result of an increased understanding of their metabolic, pharmacologic, and hormonal activities. During this time, prospective and retrospective epidemiologic studies have elucidated several noncontraceptive health benefits of oral contraceptive steroids, including their therapeutic effects for endometriosis, dysmenorrhea, polycystic ovarian disease, and benign breast disease. From this review it appears that the benefits of oral contraceptive steroids in young, healthy, nonsmoking women far outweigh their more publicized, infrequent risks.  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