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   12566篇
  免费   861篇
  国内免费   23篇
耳鼻咽喉   94篇
儿科学   404篇
妇产科学   365篇
基础医学   1542篇
口腔科学   138篇
临床医学   2216篇
内科学   1973篇
皮肤病学   164篇
神经病学   1213篇
特种医学   274篇
外科学   1225篇
综合类   222篇
一般理论   24篇
预防医学   1505篇
眼科学   284篇
药学   820篇
  2篇
中国医学   7篇
肿瘤学   978篇
  2023年   60篇
  2022年   129篇
  2021年   218篇
  2020年   143篇
  2019年   227篇
  2018年   259篇
  2017年   208篇
  2016年   203篇
  2015年   233篇
  2014年   317篇
  2013年   579篇
  2012年   777篇
  2011年   887篇
  2010年   470篇
  2009年   454篇
  2008年   804篇
  2007年   813篇
  2006年   880篇
  2005年   857篇
  2004年   908篇
  2003年   850篇
  2002年   756篇
  2001年   166篇
  2000年   108篇
  1999年   138篇
  1998年   157篇
  1997年   131篇
  1996年   98篇
  1995年   103篇
  1994年   77篇
  1993年   79篇
  1992年   100篇
  1991年   69篇
  1990年   77篇
  1989年   66篇
  1988年   59篇
  1987年   63篇
  1986年   78篇
  1985年   62篇
  1984年   65篇
  1983年   67篇
  1982年   54篇
  1981年   67篇
  1980年   74篇
  1979年   42篇
  1978年   45篇
  1977年   38篇
  1976年   32篇
  1975年   33篇
  1973年   35篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
ABSTRACT

Latinos are less likely to seek health care for eating disorders and more likely to drop out of treatment than members of other ethnic groups, highlighting existing challenges to engagement in traditional mental health care. This study explored the role of family in the treatment of adult Latinas with eating disorders through content analysis of family sessions adjunctive to cognitive behavioral therapy. This study yielded insight into the experiences of 10 Latinas with eating disorders (M age = 39.90 years) and 10 relatives (M age = 39.50) from the Promoviendo una Alimentación Saludable trial who were randomly selected to receive six family enhancement sessions. Data from 53 sessions were analyzed using a qualitative content analysis approach. Family intervention might serve as a valuable adjunct to conventional treatment by positively influencing social, family, and emotional support for Latinas with eating disorders.  相似文献   
2.
ABSTRACT

Background

Post-stroke dysphagia is characterized by reduced corticolingual excitability and lingual pressure; however, it remains unknown if transcranial magnetic stimulation (TMS) directly facilitates lingual pressure generation.  相似文献   
3.
Abstract

Purpose: Investigate change in women’s use of religious/spiritual coping (R/S) in relation to breast cancer.

Design: Longitudinal, prospective.

Sample: Fifty-six breast cancer and 82 benign diagnosis.

Methods: R/S coping and depressed mood were assessed at pre-diagnosis, 3, 6, and 12?months post-diagnosis.

Findings: Breast cancer patients increased their use of benevolent reappraisal coping from 3 to 6?months post-diagnosis while women with a benign diagnosis evidenced stability in this coping strategy. Negative R/S coping and depressed mood were associated concurrently and longitudinally for both diagnostic groups.

Conclusions: Depressed mood and negative R/S coping are intertwined across time suggesting that women from both diagnostic groups may experience emotional and spiritual struggle in their adjustment to the threat of breast cancer.

Implications for Psychosocial Providers: Clinicians need to identify and intervene early to help women address negative R/S coping as it may influence women’s adjustment within the first year post-diagnosis.  相似文献   
4.
5.
6.
7.
The Jefferson Scale of Empathy (JSE) is a broadly used instrument developed to measure empathy in the context of health professions education and patient care. Evidence in support of psychometrics of the JSE has been reported in health professions students and practitioners with the exception of osteopathic medical students. This study was designed to examine measurement properties, underlying components, and latent variable structure of the JSE in a nationwide sample of first-year matriculants at U.S. colleges of osteopathic medicine, and to develop a national norm table for the assessment of JSE scores. A web-based survey was administered at the beginning of the 2017–2018 academic year which included the JSE, a scale to detect “good impression” responses, and demographic/background information. Usable surveys were received from 6009 students enrolled in 41 college campuses (median response rate?=?92%). The JSE mean score and standard deviation for the sample were 116.54 and 10.85, respectively. Item-total score correlations were positive and statistically significant (p?<?0.01), and Cronbach α?=?0.82. Significant gender differences were observed on the JSE scores in favor of women. Also, significant differences were found on item scores between top and bottom third scorers on the JSE. Three factors of Perspective Taking, Compassionate Care, and Walking in Patient’s Shoes emerged in an exploratory factor analysis by using half of the sample. Results of confirmatory factor analysis with another half of the sample confirmed the 3-factor model. We also developed a national norm table which is the first to assess students’ JSE scores against national data.  相似文献   
8.
The timing of surgery for velopharyngeal dysfunction has been based on assumptions about the relation between age, speech development, and velopharyngeal dysfunction. Cleft palate teams often counsel parents to have an intervention for velopharyngeal dysfunction performed earlier rather than later, believing that earlier interventions result in more rapid or better normalization of speech. The objective of this retrospective chart review study is to determine whether the age at surgical intervention for velopharyngeal dysfunction has an effect on the subsequent length of speech therapy. Of 174 patients included in the study database, 36 had velopharyngeal dysfunction for which further velopharyngeal management was required. Of the 36 patients who received surgical velopharyngeal dysfunction management, 27 had verifiable speech therapy records. These 27 patients represent the study population. The outcome measure was the total length of subsequent speech therapy until speech normalization. The data suggest that there is no relation between the age at velopharyngeal dysfunction surgical management and the amount of speech therapy needed to achieve normalization of the speech impairments secondary to velopharyngeal dysfunction after that management. In conclusion, 1) the age at surgical velopharyngeal dysfunction management (pharyngeal flap or sphincter pharyngoplasty) does not have an effect on subsequent normalization of speech as measured by the duration of speech therapy necessary to achieve normalization of the speech impairments secondary to velopharyngeal dysfunction after that management, and 2) the age at surgical velopharyngeal dysfunction management does not affect the likelihood of subsequent surgical velopharyngeal dysfunction management procedures.  相似文献   
9.
Dental implants for orthodontic anchorage   总被引:7,自引:0,他引:7  
The purpose of this article is to review and update current concepts involving the use of dental implants for orthodontic anchorage. Topics to be discussed include indications, implant requirements (eg, materials, size, designs of dental implants), surgery and healing time, biomechanics and forces, loading time, implant maintenance, posttreatment considerations, and disadvantages.  相似文献   
10.
BACKGROUND: Recurrent gingival hyperplasia due to plasminogen deficiency is a rare condition due to fibrin deposition in the connective tissue. Only eight cases have previously been reported in the English literature, and all cases were diagnosed before the age of 35 years. This paper presents an older patient with recurrent gingival hyperplasia due to plasminogen deficiency (hypoplasminogenemia). METHODS: A 59-year-old woman presented with recurrent gingival swelling of 6 years' duration. Multiple biopsies performed at various time periods were histologically reported to be gingival hyperplasia with chronic inflammation. Routine hematoxylin and eosin (H & E) staining and direct immunofluorescence were performed. RESULTS: H & E-stained sections showed subepithelial, eosinophilic, amorphous, acellular deposits. Direct immunofluorescence showed positive staining for fibrin, immunoglobulin (Ig) G, IgA, and IgM. Functional plasminogen and plasminogen activator inhibitor-1 assays were done and found to be deficient. A diagnosis of gingival hyperplasia due to plasminogen deficiency (hypoplasminogenemia) was rendered. CONCLUSIONS: Recurrent gingival hyperplasia due to plasminogen deficiency (hypoplasminogenemia) is a newly recognized and rare condition. H & E staining, direct immunofluorescence, and assessment of functional plasminogen levels are essential to differentiate this condition from other conditions in which subepithelial, eosinophilic, amorphous materials are deposited.  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