全文获取类型
收费全文 | 125503篇 |
免费 | 32383篇 |
国内免费 | 1137篇 |
专业分类
耳鼻咽喉 | 2722篇 |
儿科学 | 3297篇 |
妇产科学 | 2774篇 |
基础医学 | 6670篇 |
口腔科学 | 5515篇 |
临床医学 | 29608篇 |
内科学 | 29739篇 |
皮肤病学 | 3566篇 |
神经病学 | 14347篇 |
特种医学 | 4540篇 |
外科学 | 21700篇 |
综合类 | 623篇 |
现状与发展 | 40篇 |
一般理论 | 40篇 |
预防医学 | 17018篇 |
眼科学 | 2626篇 |
药学 | 3467篇 |
中国医学 | 44篇 |
肿瘤学 | 10687篇 |
出版年
2024年 | 754篇 |
2023年 | 5145篇 |
2022年 | 1378篇 |
2021年 | 3263篇 |
2020年 | 5639篇 |
2019年 | 2506篇 |
2018年 | 7419篇 |
2017年 | 7732篇 |
2016年 | 8344篇 |
2015年 | 8578篇 |
2014年 | 11185篇 |
2013年 | 13173篇 |
2012年 | 5598篇 |
2011年 | 5389篇 |
2010年 | 7805篇 |
2009年 | 10000篇 |
2008年 | 5093篇 |
2007年 | 4281篇 |
2006年 | 5254篇 |
2005年 | 3831篇 |
2004年 | 3190篇 |
2003年 | 2824篇 |
2002年 | 2523篇 |
2001年 | 2381篇 |
2000年 | 1723篇 |
1999年 | 2241篇 |
1998年 | 2402篇 |
1997年 | 2178篇 |
1996年 | 2191篇 |
1995年 | 1911篇 |
1994年 | 1303篇 |
1993年 | 1096篇 |
1992年 | 1124篇 |
1991年 | 991篇 |
1990年 | 845篇 |
1989年 | 859篇 |
1988年 | 786篇 |
1987年 | 671篇 |
1986年 | 616篇 |
1985年 | 566篇 |
1984年 | 441篇 |
1983年 | 470篇 |
1982年 | 364篇 |
1981年 | 313篇 |
1980年 | 232篇 |
1979年 | 269篇 |
1978年 | 264篇 |
1977年 | 225篇 |
1976年 | 196篇 |
1974年 | 182篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
Factors predicting the development of pressure ulcers in an at‐risk population who receive standardized preventive care: secondary analyses of a multicentre randomised controlled trial
下载免费PDF全文
![点击此处可从《Journal of advanced nursing》网站下载免费的PDF全文](/ch/ext_images/free.gif)
52.
53.
54.
55.
Breast Elastography: How to Perform and Integrate Into a “Best-Practice” Patient Treatment Algorithm
Breast elastography has been available for more than 15 years but is not widely incorporated into clinical practice. Many publications report extremely high accuracy for various breast elastographic techniques. However, results in the literature are extremely variable. This variability is most likely due to variations in technique, a relatively steep learning curve, and variability in methods between vendors. This article describes our protocol for performing breast elastography using both strain elastography and shear wave elastography, which produces high sensitivity and specificity. Additionally, we will describe the most commonly known false-positive and false-negative lesions as well as how to detect them. 相似文献
56.
The midwifery art has emphasised the uniqueness of human beings throughout its Nordic history. The educated Nordic midwife has in the last decade celebrated several hundred years of memories. This article studies how the key ideas of the midwifery art and patterns of ideas become evident in the zeitgeist from the beginning of the 19th century to the millennium in the Nordic countries. The legacy and pattern of ideas of the art of midwifery are interpreted in relation to the texts of the selected historical sources and based on Ricoeur's phenomenological-hermeneutic approach to the text and further to the dedication of understanding and interpretation. The historical sources refer to unprinted primary sources from historical archives and printed secondary and tertiary sources. The patterns of ideas include a tripartite whole: the true cultivation of the head, the philosophy and aesthetics of the hand, the strength of the heart and the drive of calling. These ideas open for unique visions and attest to the evident in modern midwives. Today's midwives have academic training with examinations, and the education is based on scientific evidence. The midwife profession is authorised by the state and supervised by the authorities. 相似文献
57.
Turnbull Chris D. Stockley James A. Madathil Shyam Huq Syed S. A. Cooper Brendan G. Ali Asad Wharton Simon Stradling John R. Heitmar Rebekka 《Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie》2022,260(7):2129-2139
Graefe's Archive for Clinical and Experimental Ophthalmology - Retinal microvascular endothelial dysfunction is thought to be of importance in the development of ocular vascular diseases.... 相似文献
58.
59.
60.