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   5665篇
  免费   393篇
  国内免费   23篇
耳鼻咽喉   89篇
儿科学   215篇
妇产科学   62篇
基础医学   570篇
口腔科学   101篇
临床医学   443篇
内科学   1111篇
皮肤病学   151篇
神经病学   345篇
特种医学   215篇
外国民族医学   1篇
外科学   1000篇
综合类   147篇
一般理论   6篇
预防医学   351篇
眼科学   154篇
药学   650篇
中国医学   42篇
肿瘤学   428篇
  2023年   49篇
  2022年   162篇
  2021年   221篇
  2020年   119篇
  2019年   151篇
  2018年   184篇
  2017年   115篇
  2016年   164篇
  2015年   160篇
  2014年   206篇
  2013年   289篇
  2012年   430篇
  2011年   405篇
  2010年   226篇
  2009年   195篇
  2008年   324篇
  2007年   309篇
  2006年   292篇
  2005年   268篇
  2004年   227篇
  2003年   228篇
  2002年   183篇
  2001年   131篇
  2000年   114篇
  1999年   104篇
  1998年   39篇
  1997年   34篇
  1996年   34篇
  1995年   34篇
  1994年   30篇
  1993年   34篇
  1992年   71篇
  1991年   66篇
  1990年   48篇
  1989年   43篇
  1988年   49篇
  1987年   35篇
  1986年   34篇
  1985年   46篇
  1984年   39篇
  1983年   22篇
  1982年   12篇
  1981年   11篇
  1979年   21篇
  1978年   10篇
  1974年   9篇
  1972年   10篇
  1971年   12篇
  1968年   9篇
  1967年   8篇
排序方式: 共有6081条查询结果,搜索用时 15 毫秒
91.
92.
93.
ObjectiveTo assess the association between pelvic pain and uterine remnants and review the management of pelvic pain in females with Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome.DesignRetrospective cohort.SettingDepartment of Obstetrics and Gynecology at a tertiary referring medical center.PatientsForty-eight females with MRKH presenting from 1997 to 2011 with anatomy confirmed by magnetic resonance imaging (MRI).InterventionsNone.Main Outcome MeasurePrevalence Of uterine remnants and the association of uterine remnants with pelvic pain in females with MRKH.ResultsOf the 48 females with MRKH, 23 (48%) had uterine remnants and 22 (46%) had pelvic pain. Presence of endometrium was associated with pelvic pain (RR = 2.3; 95% CI = 1.2-4.7) in females with MRKH. Of the females with MKRH and pain, 9/22 had laparoscopy, with endometriosis seen in 5/9 of the uterine remnants at stages higher than are usually seen in teenagers (56%). Nine patients with pain and uterine remnants (8 with endometrium, 1 without) had laparoscopic removal of uterine remnants with resolution of pain.ConclusionsGiven the high prevalence of uterine remnants in females with MRKH, anatomic evaluation with MRI should be considered when assessing the etiology of pelvic pain. Presence of endometrium within uterine remnants, and subsequent endometriosis, in females with MRKH may be associated with pelvic pain necessitating surgical or medical management.  相似文献   
94.
ObjectivesTo develop an international consensus on managing penile cancer patients during the COVID-19 acute waves. A major concern for patients with penile cancer during the coronavirus disease 2019 (COVID-19) pandemic is how the enforced safety measures will affect their disease management. Delays in diagnosis and treatment initiation may have an impact on the extent of the primary lesion as well as the cancer-specific survival because of the development and progression of inguinal lymph node metastases.Materials and methodsA review of the COVID-19 literature was conducted in conjunction with analysis of current international guidelines on the management of penile cancer. Results were presented to an international panel of experts on penile cancer and infection control by a virtual accelerated Delphi process using 4 survey rounds. Consensus opinion was defined as an agreement of ≥80%, which was used to reconfigure management pathways for penile cancer.ResultsLimited evidence is available for delaying penile cancer management. The consensus rate of agreement was 100% that penile cancer pathways should be reconfigured, and measures should be developed to prevent perioperative nosocomial transmission of COVID-19. The panel also reached a consensus on several statements aimed at reconfiguring the management of penile cancer patients during the COVID-19 pandemic.ConclusionsThe international consensus panel proposed a framework for the diagnostic and invasive therapeutic procedures for penile cancer within a low-risk environment for COVID-19.  相似文献   
95.
Journal of Autism and Developmental Disorders - This study examines partnerships between schools and businesses that are intended to foster training and employment opportunities for secondary...  相似文献   
96.
97.
98.
99.
100.
ObjectiveTo develop and evaluate a risk score to predict people at high risk of developing type 2 diabetes in Pakistan.MethodologyCross sectional data regarding primary prevention of diabetes in Pakistan. Diabetes risk score was developed by using simple parameters namely age, waist circumference, and family history of diabetes. Odds ratios of the model were used to assign a score value for each variable and the diabetes risk score was calculated as the sum of those scores.ResultsWe externally validated the score using two data from 1264 subjects and 856 subjects aged 25 years and above from two separate studies respectively. Validating this score using the first data from the second screening study gave an area under the receive operator characteristics curve [AROC] of 0.758. A cut point of 4 had a sensitivity of 47.0% and specificity of 88% and in the second data AROC is 0.7 with 44% sensitivity and 89% specificity.ConclusionsA simple diabetes risk score, based on a set of variables can be used for the identification of high risk individuals for early intervention to delay or prevent type 2 diabetes in Pakistani population.  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