全文获取类型
收费全文 | 492179篇 |
免费 | 31546篇 |
国内免费 | 3880篇 |
专业分类
耳鼻咽喉 | 6975篇 |
儿科学 | 10002篇 |
妇产科学 | 11776篇 |
基础医学 | 70918篇 |
口腔科学 | 14562篇 |
临床医学 | 40889篇 |
内科学 | 98644篇 |
皮肤病学 | 12057篇 |
神经病学 | 36611篇 |
特种医学 | 20355篇 |
外国民族医学 | 82篇 |
外科学 | 75157篇 |
综合类 | 10451篇 |
现状与发展 | 4篇 |
一般理论 | 89篇 |
预防医学 | 23644篇 |
眼科学 | 12344篇 |
药学 | 41486篇 |
1篇 | |
中国医学 | 3532篇 |
肿瘤学 | 38026篇 |
出版年
2022年 | 3039篇 |
2021年 | 6868篇 |
2020年 | 3670篇 |
2019年 | 5535篇 |
2018年 | 7918篇 |
2017年 | 6183篇 |
2016年 | 7199篇 |
2015年 | 9209篇 |
2014年 | 11752篇 |
2013年 | 14461篇 |
2012年 | 20655篇 |
2011年 | 20459篇 |
2010年 | 12035篇 |
2009年 | 10838篇 |
2008年 | 16478篇 |
2007年 | 16977篇 |
2006年 | 16179篇 |
2005年 | 14889篇 |
2004年 | 13619篇 |
2003年 | 12719篇 |
2002年 | 11781篇 |
2001年 | 29938篇 |
2000年 | 30273篇 |
1999年 | 24907篇 |
1998年 | 5906篇 |
1997年 | 4802篇 |
1996年 | 4237篇 |
1995年 | 3850篇 |
1994年 | 3419篇 |
1993年 | 3101篇 |
1992年 | 16558篇 |
1991年 | 15315篇 |
1990年 | 14631篇 |
1989年 | 14350篇 |
1988年 | 12912篇 |
1987年 | 12393篇 |
1986年 | 11372篇 |
1985年 | 10618篇 |
1984年 | 7128篇 |
1983年 | 5768篇 |
1982年 | 2835篇 |
1979年 | 5634篇 |
1978年 | 3471篇 |
1977年 | 3064篇 |
1975年 | 2729篇 |
1974年 | 3178篇 |
1973年 | 2968篇 |
1972年 | 2923篇 |
1971年 | 2841篇 |
1969年 | 2598篇 |
排序方式: 共有10000条查询结果,搜索用时 187 毫秒
11.
12.
Esin Benli Küçük Ercan Kaydok Kürsad Ramazan Zor Gamze Yıldırım Biçer 《Topics in stroke rehabilitation》2020,27(8):630-635
ABSTRACT Objective: Dry eye is reported to be associated with several neurological diseases. The aim of this study is to evaluate the patients with hemiplegia after stroke for dry eye and compare their results with a control group. Materials and methods: Forty-five patients with hemiplegia and 45 individuals as the control group were included in the study. Tear function tests (Schirmer and tear breakup time) and a dry eye questionnaire for dry eye symptoms (ocular surface disease index) were performed and the results of the two groups were compared. Results: Schirmer test results were significantly lower in the post-stroke hemiplegia group compared to the control group (11.3 ± 8.2 mm and 20.6 ± 11.6 mm, respectively, p < .001). Tear breakup time results were significantly lower in the post-stroke hemiplegia group compared to the control group (7.9 ± 3.1 s and 12.1 ± 4.3 s, respectively, p < .001). Ocular surface disease index scores were not significantly different between hemiplegia and control groups (21.6 ± 20.0 and 19.8 ± 13.9, respectively, p = .635). Schirmer scores lower than 10 mm (60% and 30%, p < .001) and tear breakup time results lower than 10 s (65.6% and 28.9%, p < .001) were also higher in the hemiplegia group compared to control group. Conclusion: We found lower Schirmer test and tear breakup time results and similar OSDI scores in hemiplegia patients compared to controls. Hemiplegia patients may have dry eye without typical symptoms. This should be taken into consideration in the follow-up and rehabilitation of post-stroke hemiplegia patients. 相似文献
13.
14.
15.
16.
We report a Chinese family with members affected by epidermolytic ichthyosis (EI), caused by KRT gene mutations. The proband was a 14‐year‐old boy who had simultaneous appearance of nephroblastoma and epidermolytic ichthyosis (EI). Both the patient and his mother exhibited the specific clinical and pathological manifestations of EI. We analysed all exons and flanking sequences of the KRT1 and KRT10 genes using PCR, and found that the proband and his mother had a G>C transition at nucleotide position 1432 in exon 7 of KRT1, resulting in an amino acid substitution of glutamate (GAA) to glutamine (CAA) at codon 478 (E478Q). The KRT10 gene had no mutations. 相似文献
17.
Hyun Jong Choi Jong Ho Moon Yun Nah Lee Hyun Su Kim Ji Su Ha Tae Hoon Lee Sang‐Woo Cha Young Deok Cho Sang‐Heum Park 《Digestive endoscopy》2015,27(7):772-775
Direct peroral cholangioscopy (POC) using an ultra‐slim upper endoscope is one modality of POC for intraductal endoscopic evaluation and treatment of the bile duct. Choledochoduodenostomy (CDS) is one modality of biliary bypass surgery that provides a new route to the bile duct. We carried out direct POC using an ultra‐slim upper endoscope without the use of accessories in 10 patients (four sump syndromes, three bile duct strictures and three intrahepatic duct stones) previously undergoing surgical CDS. Direct POC was successful in all patients. The use of an intraductal balloon catheter was required in one patient for advancement of the endoscope into the bile duct. Distal bile ducts with sump syndromes were cleared using baskets and water irrigation under direct POC. Cholangiocarcinoma was diagnosed in one patient with hilar bile duct stricture after cholangioscopic evaluation and a targeting forceps biopsy under direct POC. Intrahepatic duct stones were successfully extracted after intraductal fragmentation under direct POC. Oozing bleeding occurred during intraductal lithotripsy but stopped spontaneously. Direct POC using an ultra‐slim upper endoscope without the assistance of accessories can easily be carried out in patients undergoing CDS. 相似文献
18.
Autoimmune comorbid diseases associated with lichen planus: a nationwide case–control study
下载免费PDF全文
![点击此处可从《Journal of the European Academy of Dermatology and Venereology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
19.
Loss‐of‐function mutations in the gene encoding filaggrin underlie a Japanese family with food‐dependent exercise‐induced anaphylaxis
下载免费PDF全文
![点击此处可从《Journal of the European Academy of Dermatology and Venereology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
20.