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   83635篇
  免费   8226篇
  国内免费   614篇
耳鼻咽喉   363篇
儿科学   2697篇
妇产科学   2060篇
基础医学   3825篇
口腔科学   2142篇
临床医学   24969篇
内科学   9733篇
皮肤病学   1056篇
神经病学   3138篇
特种医学   1153篇
外科学   8167篇
综合类   6390篇
一般理论   65篇
预防医学   16635篇
眼科学   550篇
药学   5630篇
  133篇
中国医学   1047篇
肿瘤学   2722篇
  2024年   290篇
  2023年   2948篇
  2022年   3454篇
  2021年   4661篇
  2020年   4978篇
  2019年   4885篇
  2018年   4541篇
  2017年   4075篇
  2016年   3676篇
  2015年   3517篇
  2014年   6275篇
  2013年   7169篇
  2012年   4654篇
  2011年   4818篇
  2010年   3685篇
  2009年   3693篇
  2008年   3399篇
  2007年   3574篇
  2006年   2992篇
  2005年   2531篇
  2004年   2153篇
  2003年   1685篇
  2002年   1299篇
  2001年   1170篇
  2000年   990篇
  1999年   886篇
  1998年   739篇
  1997年   593篇
  1996年   512篇
  1995年   382篇
  1994年   335篇
  1993年   306篇
  1992年   230篇
  1991年   207篇
  1990年   178篇
  1989年   127篇
  1988年   119篇
  1987年   114篇
  1986年   88篇
  1985年   117篇
  1984年   97篇
  1983年   59篇
  1982年   62篇
  1981年   49篇
  1980年   45篇
  1979年   31篇
  1978年   20篇
  1977年   19篇
  1976年   19篇
  1975年   12篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
63.
Abstract Pericardial tamponade remains a diagnostic challenge to the clinician especially when the patient is well compensated hemodynamically. We report an unusual case who sought medical help 1 month after having been stabbed in his chest. An investigation revealed a perforation of the myocardium and a pericardial tamponade. The patient survived thanks to a large organized clot that plugged the perforation. The patient was exposed to increased risk due to delayed onset, recognition, and therapy of the tamponade. Most reports on this subject deal with acute pericardial tamponade. Only few cases of delayed pericardial tamponade have been reported. A review of the relevant literature and the therapeutic approaches are discussed.  相似文献   
64.
目的 :为了提高创伤性脑膜炎的治愈率及护理满意度。方法 :对收治的 82例患者在治疗上应用足量有效的抗生素 ,及时处理原发伤 ,反复腰穿以控制感染。在护理上密切观察病情 ,保持气道通畅 ,加强头痛、高热及脑脊液耳、鼻漏的护理 ,保持创口清洁 ,注重健康宣教。结果 :77例治愈 ,5例死亡。结论 :早期诊断、有效处理原发伤及对症护理可促进创伤性脑膜炎的康复  相似文献   
65.
66.
张玲 《实用医技杂志》2005,12(18):2649-2650
文化休克(culture shock),又译为文化震撼或文化震惊,是指生活在某一种文化环境中的人初次进入到另一种文化环境,如到了不同的民族、社会群体中或地区甚至国家时所产生的思想混乱与心理上精神紧张综合征。新入校中专护生,由于文化环境的改变,往往会出现孤独、焦虑、无助等文化休克的种种表现,这些现象若不能及时得到解决,将不利于他们的全面健康状态的成长与发展。众所周知,WHO明确规定,健康不但是没有疾病和身体缺陷,还要有完整的生理、心理状态和良好的社会适应能力。因此,新入校中专护生这一特殊群体所产生的文化休克现象应引起学校有…  相似文献   
67.
BACKGROUND: Breast cancer is the most common cancer in women and therefore represents a major problem in public health. Data from patients' self-report questionnaires provide valuable information about the side-effects that patients may view as having a significantly detrimental impact on their quality of life (QOL) and yet are not always recognized as important by healthcare professionals. Cosmetology is a specific care for patients and there is actually no scientific evidence regarding effects on QOL for women with breast cancer. OBJECTIVE: The purpose of this study is to assess the impact of cosmetic care on QOL in breast cancer patients during chemotherapy and radiotherapy. METHODS: We developed a prospective, multicentre, randomized, controlled study including 27 patients. All the patients had to fill in a French-validated dermatologic specific quality-of-life questionnaire to compare the QOL of the two groups, the cosmetic group and the control group, at three different times of the adjuvant treatment. RESULTS: The results show a statistically significant difference between the cosmetic group and the control group in two areas of QOL: mood state and self-perception of the disease. CONCLUSION: This study emphasizes the interest of cosmetic care in breast cancer patients. However, further larger trials are needed to confirm this study.  相似文献   
68.
69.
Valid classification of stroke is essential to initiate effective acute management and early secondary prevention strategies. To accurately evaluate stroke subtype a number of diagnostic procedures have to be performed. This study sought to investigate variations in use of diagnostic procedures across selected European hospitals. First-ever stroke patients were sampled over a 1-year period through 11 hospital-based registers across 10 European countries. We defined a diagnostic standard for valid aetiological classification of ischemic stroke including brain imaging, vascular imaging and echocardiography. The impact of socio-demographic, clinical and structural characteristics on performance of the diagnostic standard was assessed using multivariate logistic regression analyses. A total of 1721 patients were included in the study. 83.1% received brain imaging, ranging from 32.8% to 100%. The diagnostic standard was performed in 40.4% of stroke patients, ranging from 0% to 77.2%. Patients with increasing age ( P  < 0.001) and with more severe strokes ( P  = 0.001) were less probably to receive the diagnostic standard. Patients treated in stroke units and neurological departments were more frequently investigated with the diagnostic standard ( P  < 0.001). Less than half of hospitalized stroke patients across Europe underwent diagnostic procedures to allow for aetiological classification of stroke, which may hamper the initiation of effective early management and secondary prevention.  相似文献   
70.
We sought to explore the Society of Gynecologic Oncologists (SGO) members' opinions and decisions about end-of-life issues and incurable conditions. A survey was mailed to members of the SGO. Their responses were recorded on a Likert scale and entered into a database. The survey explored opinions, experiences, and decisions in managing terminally ill gynecologic oncology patients. Of 900 surveys, 327 were returned (response rate, 36%). Seventy-three percent were men, 89% were white, and 72% were of Christian denomination. Respondents believed that 97% of patients who are dying realize that they are dying but stated only 40% of these patients initiate conversations about end-of-life issues. In contrast, 92% of respondents stated that they initiate end-of-life discussions with patients. Ninety-two percent of respondents thought that the patients should be allowed to make end-of-life choices independently after the facts are given to them. However, 44% thought that it is important to influence the way information is presented, and 54% believe that the gynecologic oncologist (GO) controls the outcome of end-of-life discussions. Although the physicians' sex, race, religion, and age did not correlate with their treatment decisions, religion did correlate with less fear of death (P = 0.011) and less discomfort when talking with patients about death (P = 0.005). Fifty-four percent of respondents believed that the GO controls the outcome of end-of-life discussions, and 40% believe that their actions prolong the process of dying. Expanding our understanding of what motivates GOs to recommend continued treatment over palliation is important for preserving informed patient-motivated end-of-life decisions.  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