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   6411篇
  免费   431篇
  国内免费   21篇
耳鼻咽喉   91篇
儿科学   233篇
妇产科学   65篇
基础医学   650篇
口腔科学   126篇
临床医学   539篇
内科学   1187篇
皮肤病学   154篇
神经病学   409篇
特种医学   240篇
外国民族医学   1篇
外科学   1203篇
综合类   147篇
现状与发展   1篇
一般理论   7篇
预防医学   415篇
眼科学   170篇
药学   716篇
中国医学   74篇
肿瘤学   435篇
  2023年   50篇
  2022年   184篇
  2021年   254篇
  2020年   139篇
  2019年   197篇
  2018年   225篇
  2017年   132篇
  2016年   185篇
  2015年   184篇
  2014年   231篇
  2013年   308篇
  2012年   477篇
  2011年   433篇
  2010年   252篇
  2009年   229篇
  2008年   394篇
  2007年   382篇
  2006年   338篇
  2005年   293篇
  2004年   269篇
  2003年   247篇
  2002年   206篇
  2001年   136篇
  2000年   123篇
  1999年   111篇
  1998年   44篇
  1997年   40篇
  1996年   34篇
  1995年   37篇
  1994年   30篇
  1993年   40篇
  1992年   72篇
  1991年   70篇
  1990年   52篇
  1989年   47篇
  1988年   48篇
  1987年   36篇
  1986年   34篇
  1985年   47篇
  1984年   40篇
  1983年   24篇
  1982年   13篇
  1981年   14篇
  1980年   10篇
  1979年   22篇
  1978年   10篇
  1974年   14篇
  1973年   10篇
  1972年   10篇
  1971年   12篇
排序方式: 共有6863条查询结果,搜索用时 15 毫秒
101.
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   
102.
INTRODUCTIONBouveret's syndrome is a rare variant of gallstone ileus and describes gastric outlet obstruction secondary to an impacted stone in the duodenum. Its presentation is vague and clinical diagnosis is often difficult resulting in a delay in diagnosis.PRESENTATION OF CASEWe report a patient who presented initially with non-specific symptoms and subsequently with features in keeping with acute pancreatitis, but eventually was found to have Bouveret's syndrome.DISCUSSIONDifferent treatment strategies are discussed. Although endoscopic treatment combined with many newer modalities like lithotripsy have been tried, surgery remains the definitive management in the vast majority of cases.CONCLUSIONBouveret's syndrome is a rare condition, can also present as pancreatitis and often difficult to diagnose initially, but with appropriate treatment has a good outcome.  相似文献   
103.
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   
104.
105.
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   
106.
107.
108.
109.
110.
Immunocompromised populations are at great risk of the current 2020 global emergency of coronavirus disease 2019 (COVID-19), and treatment of kidney transplant recipients with COVID-19 is currently not declared. Hence, the purpose of the study is to set a clear treatment regimen. We report here a therapeutic course of 2 patients who underwent transplant surgery in March 2020 and got infected soon after. Since the transplant, these 2 patients have received triple maintenance immunosuppressive therapy with oral tacrolimus, mycophenolate mofetil (MMF), and prednisone, and they have been regularly followed up at our hospital. The tacrolimus trough level was between 10 and 12 ng/mL. After the diagnosis of COVID-19, MMF was stopped and the tacrolimus dose was reduced so that blood level was between 4 and 6 ng/mL. The first patient was a 30-year-old man who, despite being treated with hydroxychloroquine, favipiravir, oseltamivir, and azithromycin therapy, died because of the presence of other comorbidities. The second case was a 58-year-old man who fully recovered from COVID-19 pneumonia with treatment with methylprednisolone, MMF, azithromycin, favipiravir, hydroxychloroquine, and reduction in immunosuppression dosage. This reflects the importance of using glucocorticoids in the treatment of COVID-19 along with other medications and the decreased mortality rate associated with their use.  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