全文获取类型
收费全文 | 3666篇 |
免费 | 167篇 |
国内免费 | 93篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 20篇 |
妇产科学 | 26篇 |
基础医学 | 155篇 |
口腔科学 | 77篇 |
临床医学 | 517篇 |
内科学 | 199篇 |
皮肤病学 | 45篇 |
神经病学 | 98篇 |
特种医学 | 201篇 |
外国民族医学 | 2篇 |
外科学 | 135篇 |
综合类 | 570篇 |
预防医学 | 1534篇 |
眼科学 | 10篇 |
药学 | 216篇 |
9篇 | |
中国医学 | 69篇 |
肿瘤学 | 40篇 |
出版年
2024年 | 12篇 |
2023年 | 55篇 |
2022年 | 86篇 |
2021年 | 96篇 |
2020年 | 137篇 |
2019年 | 99篇 |
2018年 | 93篇 |
2017年 | 122篇 |
2016年 | 98篇 |
2015年 | 97篇 |
2014年 | 248篇 |
2013年 | 211篇 |
2012年 | 297篇 |
2011年 | 274篇 |
2010年 | 190篇 |
2009年 | 186篇 |
2008年 | 176篇 |
2007年 | 184篇 |
2006年 | 165篇 |
2005年 | 131篇 |
2004年 | 119篇 |
2003年 | 81篇 |
2002年 | 55篇 |
2001年 | 59篇 |
2000年 | 54篇 |
1999年 | 44篇 |
1998年 | 41篇 |
1997年 | 32篇 |
1996年 | 34篇 |
1995年 | 24篇 |
1994年 | 36篇 |
1993年 | 27篇 |
1992年 | 40篇 |
1991年 | 32篇 |
1990年 | 23篇 |
1989年 | 31篇 |
1988年 | 36篇 |
1987年 | 31篇 |
1986年 | 30篇 |
1985年 | 16篇 |
1984年 | 18篇 |
1983年 | 18篇 |
1982年 | 8篇 |
1981年 | 7篇 |
1980年 | 9篇 |
1979年 | 5篇 |
1978年 | 16篇 |
1977年 | 8篇 |
1976年 | 16篇 |
1975年 | 12篇 |
排序方式: 共有3926条查询结果,搜索用时 13 毫秒
991.
Daniel Dyball Sarah Evans Christopher J. Boos Sharon A. M. Stevelink Nicola T. Fear 《International review of psychiatry (Abingdon, England)》2019,31(1):34-48
AbstractMilitary personnel with Post-Traumatic Stress Disorder (PTSD) can experience high levels of mental and physical health comorbidity, potentially indicating a high level of functional impairment that can impact on both military readiness and later ill-health. There is strong evidence to implicate PTSD as a contributory factor to Cardiovascular Disease (CVD) among serving personnel and veterans. This systematic review focusses on the association between PTSD and cardiovascular disease/risk factors in male, military serving and ex-serving personnel who served in the Iraq/Afghanistan conflicts. PUBMED, MEDLINE, PILOTS, EMBASE, PSYCINFO, and PSYCARTICLES were searched using PRISMA guidelines. Three hundred and forty-three records were identified, of which 20 articles were selected. PTSD was positively associated with the development of CVD, specifically circulatory diseases, including hypertension. PTSD was also positively associated with the following risk factors: elevated heart rate, tobacco use, dyslipidaemia, and obesity. Conflicting data is presented regarding heart rate variability and inflammatory markers. Future studies would benefit from a standardized methodological approach to investigating PTSD and physical health manifestations. It is suggested that clinicians offer health advice for CVD at an earlier age for ex-/serving personnel with PTSD. 相似文献
992.
Charles W. Hwang Desmond E. Fitzpatrick Torben K. Becker Jason M. Jones 《The American journal of emergency medicine》2019,37(3):482-485
Background
Freestanding emergency departments (FSED) are equipped to care for most emergencies, but do not have all the resources that hospital-based emergency departments (ED) offer. As the number of FSEDs grows rapidly, emergency medical services (EMS) must routinely determine whether a FSED is an appropriate destination. Inappropriate triage may delay definitive care, potentially increasing morbidity, mortality, and resource utilization. We sought to evaluate paramedics' ability in determining whether a FSED is the most appropriate destination.Methods
We conducted a retrospective study of two county EMS agencies and two FSEDs over a 25-month period in Alachua and Levy County, Florida, USA. Both EMS agencies allow paramedic discretion in determining transport destination. To determine whether paramedics can correctly identify patients that can be cared for fully at a FSED, our primary outcome was the percentage of patients transported to FSEDs by EMS that were discharged without additional hospital-based resources.Results
We identified 1247 EMS patients that had a selected destination of FSED. We excluded patients that did not arrive at their selected FSED destination, left before FSED disposition, or were transferred from the FSED to unaffiliated hospitals. A total of 1184 patients were included for analysis, and 885 (74.7%) did not require additional hospital resources. Comparing the two EMS agencies yielded similar results.Conclusion
In this study, involving two EMS agencies over a 25-month period, we found that 3 out of 4 patients deemed appropriate for transport to a FSED by a paramedic did not require additional hospital-based services. 相似文献993.
张万华 《中华医院管理杂志》2000,16(11):691-692
把握好人事制度改革中思想政治工作的特点和工作对象的思想实际。有针对性地进行思想教育工作,才能切实发挥思想政治工作的威力,提高思想政治工作的有效性。应针对改革的不同阶段,安排不同的思想教育内容;针对不同人群,确定不同的思想教育重点,针对不同问题,采取不同的思想教育方式。 相似文献
994.
Peter M. Ellis Phyllis N. Butow R. John Simes Martin H. N. Tattersall Stewart M. Dunn 《ANZ journal of surgery》1999,69(7):486-491
Background : Doctors’ discomfort with the randomized trial process may significantly impact on accrual rates to clinical trials. However, there is little information regarding factors that influence accrual to clinical trials in Australia. The present study examines Australian cancer specialists’ attitudes towards and participation in current breast cancer clinical trials. Methods : All medical and radiation oncologists across Australia and surgeons listed as participants in the Australian and New Zealand Breast Cancer Trials Group were sent questionnaires assessing attitudes towards and participation in current clinical trials for early stage breast cancer. Results : The response rate was 71% (269/381). The mean age of respondents was 45 years and 85% were male. Respondents estimated that a mean of 5.2 (SD = 8.2) of their patients had been enrolled in a breast cancer clinical trial in the previous 12 months. Participation (in any trial) by medical oncologists (60.6%, 95%CI 54.5–66.7%) and surgeons (63.1%, 95%CI 57.1–69.1%) was significantly higher than for radiation oncologists (43.2%, 95%CI 37–49.4%, P = 0.03). The major barriers to participation in current breast cancer trials were lack of resources (44%) or issues related to specific trials (44%; e.g. relevance of the research questions or choice of standard therapies). Conclusions : The results of this study suggest that efforts to improve doctors’ participation in clinical trials need to address a number of issues. More empirical research is needed to evaluate new strategies to raise participation in clinical trials. 相似文献
995.
996.
997.
We sought to analyze the current situation of personnel training and scientific research regarding pharmacy intravenous admixture services (PIVAS), to provide evidence-based medical knowledge to inform personnel training for PIVAS in mainland China.A cross-sectional survey was used to examine the current status of PIVAS personnel training, research capabilities, needs, and research output of PIVAS personnel based from the perspective of leaders in PIVAS in China. The survey period was from March to April 2019.A total of 137 hospitals in China participated in this survey. The main training content areas of PIVAS staff in each hospital were professional theoretical knowledge (100.00%, 137/137) and practical operation ability (98.54%, 135/137). The frequency of training was typically 1 to 2 times/month (56.9%, 78/137). The average duration of a single training session was typically 1 h or less (68.6%, 94/137). The most common forms of PIVAS training were lectures (94.89%, 130/137) and practical operations (79.56%, 109/137). A total of 51.8% (71/137) of PIVAS leaders believed that PIVAS personnel had a high degree of scientific research needs, but 61.3% (84/137) believed that few personnel had mastered scientific research methodology, and 41.6% (57/137) believed that the scientific research ability of personnel was relatively poor. Among PIVAS personnel, only 38.7% (53/137) had specialized scientific training. The annual total SCI output was 0 to 18 articles (median 0 articles) and the total number of national-level funding grants was 0 to 2 (median 0). There were no significant differences in the training of PIVAS personnel and scientific research between different provinces and hospital levels.The training content of PIVAS personnel in China was found to be relatively rich, but management tools, career development, and training in scientific research were found to be relatively weak, and the scientific research output was very low. It is necessary to build a comprehensive training system for career development among PIVAS personnel. 相似文献
998.
999.
Medical Center Occupational Health (MCOH) programs must protect health care personnel (HCP) against the occupational risk of vaccine-preventable diseases. This thematic review outlines the rationale for the use of recommended vaccines in HCP; summarizes the available evidence regarding vaccine effectiveness, administration, and assessment of immunity; and provides guidance for MCOH programs navigating challenging situations. 相似文献
1000.