全文获取类型
收费全文 | 3512019篇 |
免费 | 251195篇 |
国内免费 | 6260篇 |
专业分类
耳鼻咽喉 | 47572篇 |
儿科学 | 114260篇 |
妇产科学 | 95244篇 |
基础医学 | 507996篇 |
口腔科学 | 100026篇 |
临床医学 | 319169篇 |
内科学 | 675736篇 |
皮肤病学 | 78055篇 |
神经病学 | 278478篇 |
特种医学 | 131490篇 |
外国民族医学 | 701篇 |
外科学 | 525592篇 |
综合类 | 76324篇 |
现状与发展 | 14篇 |
一般理论 | 1321篇 |
预防医学 | 275066篇 |
眼科学 | 83746篇 |
药学 | 258515篇 |
13篇 | |
中国医学 | 7668篇 |
肿瘤学 | 192488篇 |
出版年
2021年 | 27966篇 |
2019年 | 28796篇 |
2018年 | 40289篇 |
2017年 | 30508篇 |
2016年 | 34074篇 |
2015年 | 38481篇 |
2014年 | 54263篇 |
2013年 | 80590篇 |
2012年 | 111581篇 |
2011年 | 118075篇 |
2010年 | 70302篇 |
2009年 | 66107篇 |
2008年 | 110043篇 |
2007年 | 117200篇 |
2006年 | 118355篇 |
2005年 | 114091篇 |
2004年 | 109366篇 |
2003年 | 104771篇 |
2002年 | 101067篇 |
2001年 | 164515篇 |
2000年 | 168881篇 |
1999年 | 141741篇 |
1998年 | 40631篇 |
1997年 | 35465篇 |
1996年 | 35620篇 |
1995年 | 33754篇 |
1994年 | 31045篇 |
1993年 | 28995篇 |
1992年 | 109273篇 |
1991年 | 106200篇 |
1990年 | 102871篇 |
1989年 | 99232篇 |
1988年 | 91064篇 |
1987年 | 89040篇 |
1986年 | 83769篇 |
1985年 | 80166篇 |
1984年 | 59526篇 |
1983年 | 50738篇 |
1982年 | 29616篇 |
1979年 | 54100篇 |
1978年 | 38109篇 |
1977年 | 32013篇 |
1976年 | 30322篇 |
1975年 | 32244篇 |
1974年 | 39062篇 |
1973年 | 37407篇 |
1972年 | 34930篇 |
1971年 | 32829篇 |
1970年 | 30449篇 |
1969年 | 28773篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
71.
Maaike van Gerwen MD Naomi Alpert MS Raja Flores MD Emanuela Taioli MD PhD 《American journal of industrial medicine》2020,63(2):115-120
The association between asbestos exposure, mainly in occupational settings, and malignant mesothelioma has been well established; this has prompted several countries to establish mesothelioma epidemiologic surveillance programs often at the request of national agencies. This review compares currently existing mesothelioma registries worldwide to develop a concept model for a US real-time case capture mesothelioma registry. Five countries were identified with a mesothelioma specific registry, including Italy, France, UK, Australia, and South Korea. All, except the UK, used interviews to collect exposure data. Linkage with the national death index was available or was in future plans for all registries. The registries have limited information on treatment, quality of life, and other patient-centered outcomes such as symptoms and pain management. To thoroughly collect exposure data, “real-time” enrollment is preferable; to maximize the capture of mesothelioma cases, optimal coverage, and a simplified consent process are needed. 相似文献
72.
Assessment of Myocardial Infarct Size by Three‐Dimensional and Two‐Dimensional Speckle Tracking Echocardiography: A Comparative Study to Single Photon Emission Computed Tomography 下载免费PDF全文
73.
Vestibular function laboratories utilize a multitude of diagnostic instruments to evaluate a dizzy patient. Caloric irrigators, oculomotor stimuli, and rotational chairs produce a stimulus whose accuracy is required for the patient response to be accurate. Careful attention to everything from cleanliness of equipment to threshold adjustments determine on a daily basis if patient data are going to be correct and useful. Instrumentation specifications that change with time such as speed and temperature must periodically be checked using calibrated instruments. 相似文献
74.
In 1963, Goffman argued that forming a group based on shared stigma may provide benefits. However, there is no empirical research on whether perception that a separate, unique, coherent group exists (i.e., group entitativity) influences coping, such as educating others or secrecy, for the stigmatized individual or his or her spouse. Further, little is known about how spouses influence each other in terms of promoting the education of others about a stigmatizing condition, especially when it comes to the role of believing that stigma-based groups, to which they may both belong, exist. This study provides a step toward bridging this gap in the research by applying the label management model in efforts to understand coping for couples in which one spouse is diagnosed with genetic mutations leading to alpha-1 antitrypsin deficiency (AATD). This study included 50 married couples in which one spouse is diagnosed with genetic mutations leading to alpha-1 antitrypsin deficiency (AATD). We found that group entitativity related to those with AATD counterbalanced the influence of genetic stigma on spouses’ intentions to keep the diagnosis secret or to educate others about it. Intrapersonal and interpersonal influences appeared among spouses. Attention is needed on the power of creating groups for stigmatized persons and their relatives. Indeed, people live within a dynamic world of group entities, and multiple social identities including spousal and familial. While attention has been paid to the diffusion of stigmas to loved ones, less has been paid to the uplift of group entities for them. 相似文献
75.
76.
77.
78.
79.
80.
Feasibility and Diagnostic Potential of Pulmonary Transit Time Measurement by Contrast Echocardiography: A Pilot Study 下载免费PDF全文