全文获取类型
收费全文 | 1385篇 |
免费 | 91篇 |
国内免费 | 12篇 |
专业分类
耳鼻咽喉 | 8篇 |
儿科学 | 47篇 |
妇产科学 | 65篇 |
基础医学 | 178篇 |
口腔科学 | 18篇 |
临床医学 | 124篇 |
内科学 | 287篇 |
皮肤病学 | 24篇 |
神经病学 | 32篇 |
特种医学 | 135篇 |
外科学 | 254篇 |
综合类 | 24篇 |
预防医学 | 51篇 |
眼科学 | 25篇 |
药学 | 60篇 |
中国医学 | 1篇 |
肿瘤学 | 155篇 |
出版年
2023年 | 12篇 |
2021年 | 27篇 |
2020年 | 21篇 |
2019年 | 11篇 |
2018年 | 31篇 |
2017年 | 28篇 |
2016年 | 27篇 |
2015年 | 35篇 |
2014年 | 57篇 |
2013年 | 69篇 |
2012年 | 42篇 |
2011年 | 49篇 |
2010年 | 49篇 |
2009年 | 46篇 |
2008年 | 62篇 |
2007年 | 56篇 |
2006年 | 37篇 |
2005年 | 51篇 |
2004年 | 37篇 |
2003年 | 41篇 |
2002年 | 46篇 |
2001年 | 58篇 |
2000年 | 55篇 |
1999年 | 55篇 |
1998年 | 29篇 |
1997年 | 39篇 |
1996年 | 36篇 |
1995年 | 26篇 |
1994年 | 25篇 |
1993年 | 16篇 |
1992年 | 25篇 |
1991年 | 14篇 |
1990年 | 10篇 |
1989年 | 25篇 |
1988年 | 21篇 |
1987年 | 21篇 |
1986年 | 20篇 |
1985年 | 17篇 |
1984年 | 13篇 |
1982年 | 14篇 |
1981年 | 9篇 |
1980年 | 15篇 |
1979年 | 9篇 |
1978年 | 11篇 |
1977年 | 23篇 |
1976年 | 13篇 |
1975年 | 8篇 |
1973年 | 8篇 |
1968年 | 6篇 |
1967年 | 7篇 |
排序方式: 共有1488条查询结果,搜索用时 0 毫秒
1.
2.
Yamada Shuichi Nakagawa Ichiro Tamura Kentaro Nishimura Fumihiko Motoyama Yasushi Park Young-Soo Nakase Hiroyuki 《Journal of neurology》2020,267(11):3274-3281
Journal of Neurology - Poststroke epilepsy is a common problem in clinical practice. This study aimed to determine the predictors of poststroke epilepsy and to identify the risk factors. A total of... 相似文献
3.
4.
5.
6.
7.
Ryo Miyata Toyofumi F. Chen-Yoshikawa Masatsugu Hamaji Fumiaki Gochi Hideki Motoyama Toshi Menju Akihiro Aoyama Toshihiko Sato Makoto Sonobe Hiroshi Date 《General thoracic and cardiovascular surgery》2018,66(6):368-371
There is a dearth of data on management of anastomotic airway dehiscence following lung transplantation. Herein we report a case of successful conservative management of an anastomotic airway dehiscence after cadaveric donor lung transplantation. A 41-year-old woman with primary ciliary dyskinesia underwent cadaveric bilateral lung transplantation without cardiopulmonary bypass. On the postoperative day 25, left pneumothorax developed and bronchoscopy demonstrated a localized anastomotic dehiscence at the left main bronchus. The dehiscence was managed with 2 weeks of pleural drainage and was completely covered with regenerated bronchial epithelium at 4 months after transplantation. There is no finding suggestive of significant stenosis at 4 years of follow-up. Our case suggested asymptomatic and localized anastomotic dehiscence does not always require endobronchial stent placement or re-operation. Multiple factors that may contribute to the successful conservative management were discussed in this article. 相似文献
8.
NUR AIN ALIAS WAN AZANI MUSTAFA MOHD AMINUDIN JAMLOS AHMED ALKHAYYAT KHAIRUL SHAKIR AB RAHMAN RAMI Q. MALIK 《Oncology research》2021,29(5):365-376
Cervical cancer is a prevalent and deadly cancer that affects women all over the world. It affects about 0.5 million women anually and results in over 0.3 million fatalities. Diagnosis of this cancer was previously done manually, which could result in false positives or negatives. The researchers are still contemplating how to detect cervical cancer automatically and how to evaluate Pap smear images. Hence, this paper has reviewed several detection methods from the previous researches that has been done before. This paper reviews pre-processing, detection method framework for nucleus detection, and analysis performance of the method selected. There are four methods based on a reviewed technique from previous studies that have been running through the experimental procedure using Matlab, and the dataset used is established Herlev Dataset. The results show that the highest performance assessment metric values obtain from Method 1: Thresholding and Trace region boundaries in a binary image with the values of precision 1.0, sensitivity 98.77%, specificity 98.76%, accuracy 98.77% and PSNR 25.74% for a single type of cell. Meanwhile, the average values of precision were 0.99, sensitivity 90.71%, specificity 96.55%, accuracy 92.91% and PSNR 16.22%. The experimental results are then compared to the existing methods from previous studies. They show that the improvement method is able to detect the nucleus of the cell with higher performance assessment values. On the other hand, the majority of current approaches can be used with either a single or a large number of cervical cancer smear images. This study might persuade other researchers to recognize the value of some of the existing detection techniques and offer a strong approach for developing and implementing new solutions. 相似文献
9.
Miyake Hideaki Sato Ryo Watanabe Kyohei Matsushita Yuto Watanabe Hiromitsu Motoyama Daisuke Ito Toshiki Sugiyama Takayuki Otsuka Atsushi 《International journal of clinical oncology / Japan Society of Clinical Oncology》2021,26(9):1745-1751
International Journal of Clinical Oncology - Cabazitaxel has played an important role in the treatment of patients with metastatic castration-resistant prostate cancer (mCRPC); however, several... 相似文献
10.