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   3633篇
  免费   272篇
  国内免费   17篇
耳鼻咽喉   47篇
儿科学   140篇
妇产科学   84篇
基础医学   333篇
口腔科学   164篇
临床医学   305篇
内科学   642篇
皮肤病学   26篇
神经病学   298篇
特种医学   277篇
外国民族医学   1篇
外科学   585篇
综合类   73篇
一般理论   2篇
预防医学   415篇
眼科学   102篇
药学   159篇
  1篇
中国医学   2篇
肿瘤学   266篇
  2021年   38篇
  2020年   32篇
  2019年   45篇
  2018年   63篇
  2017年   44篇
  2016年   39篇
  2014年   54篇
  2013年   86篇
  2012年   145篇
  2011年   164篇
  2010年   98篇
  2009年   73篇
  2008年   121篇
  2007年   143篇
  2006年   151篇
  2005年   143篇
  2004年   133篇
  2003年   108篇
  2002年   123篇
  2001年   112篇
  2000年   117篇
  1999年   105篇
  1998年   53篇
  1997年   39篇
  1996年   46篇
  1995年   42篇
  1994年   41篇
  1993年   42篇
  1992年   95篇
  1991年   97篇
  1990年   74篇
  1989年   100篇
  1988年   90篇
  1987年   94篇
  1986年   97篇
  1985年   88篇
  1984年   56篇
  1983年   56篇
  1982年   45篇
  1981年   33篇
  1980年   43篇
  1979年   60篇
  1978年   44篇
  1977年   36篇
  1974年   31篇
  1973年   37篇
  1972年   34篇
  1969年   32篇
  1968年   31篇
  1967年   31篇
排序方式: 共有3922条查询结果,搜索用时 31 毫秒
1.
Jeffrey S. Abrams 《Arthroscopy》2019,35(9):2756-2758
The controversy as to what is the best technique to repair a rotator cuff continues, with single–anchor row versus double-row techniques being highlighted. The literature has presented multiple studies with clinical outcomes being similar, even though double-row linked and transosseous-equivalent repairs have a higher success rate with postoperative imaging. Clinical outcome instruments weigh pain as a major criterion, but strength improvement favors an intact repair. Treatment of chronic rotator cuff tears often yields muscular changes that may compromise the strength-improvement portion of the outcome. Larger tears benefit from additional fixation, and tissue loss continues to require adjustments to the repair strategy. Attempting a repair that emphasizes footprint coverage may over-tension the cuff repair and risk shoulder stiffness and medial failure of the repair. By use of a 3-dimensional spherical attachment surface, a linked infraspinatus repair can be combined with an anteromedial supraspinatus repair to create a lower-tensioned secure repair. Additional grafting methods, including use of the biceps, may provide additional strength to the repair construct.  相似文献   
2.
3.
Prior studies have conflicting findings regarding the association between gastroesophageal reflux disease (GERD) and esophageal squamous cell carcinoma (ESCC). We examined this relationship in a prospective cohort in a region of high ESCC incidence. Baseline exposure data were collected from 50 045 individuals using in-person interviews at the time of cohort entry. Participants were followed until they developed cancer, died, or were lost to follow up. Participants with GERD symptoms were categorized into any GERD (heartburn or regurgitation), mixed symptoms, or heartburn alone. Multivariable Cox regression was used to assess the relationship between GERD symptom group and histologically confirmed ESCC. The model was adjusted for known risk factors for GERD and ESCC. 49 559 individuals were included in this study, of which 9005 had GERD symptoms. Over 13.0 years of median follow up, 290 individuals were diagnosed with ESCC. We found no association between any GERD and risk of ESCC (aHR 0.90, 95% CI: 0.66-1.24, P = .54). Similar findings were observed for the GERD symptom subtypes. Significant interactions between any GERD and sex (P = .013) as well as tobacco smoking (P = .028) were observed. In post-hoc analyses, GERD was associated with a decreased risk of ESCC in men (aHR 0.51, 95% CI: 0.27-0.98 P = .04) and in smokers (aHR 0.26, 95% CI: 0.08-0.83 P = .02). While there was little evidence for an overall association between GERD symptoms and ESCC risk, significant interactions with sex and smoking were observed. Men and smokers with GERD symptoms had a lower risk of ESCC development.  相似文献   
4.
5.
6.
7.
8.
9.
10.
ABSTRACT

This phenomenological study engaged an availability sample of eight, long-term, adult burn survivors living a primarily rural burn center catchment area of the U.S. in face-to-face interviews focused on their holistic health since their burn injuries occurred. Criteria for the primary study involved females (n = 1) and males (n = 7) with an age range of 18 to 65 years and a minimum of 20% total body surface area (TBSA) injuries that required hospitalization in a specialized burn center. The mean age of participants at the time of interviews was 54.38 years. Burns ranged between 20% and 98% TBSA and one to 22 years since burn injuries occurred. Thematic data analysis revealed resilient protective factors as contributing to participants’ post-burn health and recoveries. Resilient factors included resourcefulness, achievement motivation, optimism, spirituality, and empathy. Increased understanding of resilient protective factors and how they impacted long-term burn recovery in this sample may aid social workers in development and implementation community-based interventions in rural communities that promote resilience, health/mental health and long-term recovery for this population and others who have experienced trauma.  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