全文获取类型
收费全文 | 5393篇 |
免费 | 282篇 |
国内免费 | 26篇 |
专业分类
耳鼻咽喉 | 103篇 |
儿科学 | 308篇 |
妇产科学 | 38篇 |
基础医学 | 464篇 |
口腔科学 | 140篇 |
临床医学 | 421篇 |
内科学 | 1400篇 |
皮肤病学 | 102篇 |
神经病学 | 376篇 |
特种医学 | 180篇 |
外科学 | 896篇 |
综合类 | 144篇 |
一般理论 | 2篇 |
预防医学 | 146篇 |
眼科学 | 224篇 |
药学 | 385篇 |
1篇 | |
中国医学 | 21篇 |
肿瘤学 | 350篇 |
出版年
2023年 | 63篇 |
2022年 | 116篇 |
2021年 | 281篇 |
2020年 | 96篇 |
2019年 | 178篇 |
2018年 | 268篇 |
2017年 | 146篇 |
2016年 | 173篇 |
2015年 | 158篇 |
2014年 | 260篇 |
2013年 | 361篇 |
2012年 | 513篇 |
2011年 | 477篇 |
2010年 | 263篇 |
2009年 | 213篇 |
2008年 | 309篇 |
2007年 | 366篇 |
2006年 | 325篇 |
2005年 | 262篇 |
2004年 | 210篇 |
2003年 | 173篇 |
2002年 | 150篇 |
2001年 | 37篇 |
2000年 | 41篇 |
1999年 | 33篇 |
1998年 | 21篇 |
1997年 | 17篇 |
1996年 | 16篇 |
1995年 | 20篇 |
1994年 | 7篇 |
1993年 | 8篇 |
1992年 | 7篇 |
1991年 | 16篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 10篇 |
1987年 | 5篇 |
1986年 | 9篇 |
1985年 | 8篇 |
1984年 | 11篇 |
1983年 | 9篇 |
1982年 | 5篇 |
1979年 | 7篇 |
1978年 | 11篇 |
1977年 | 3篇 |
1976年 | 3篇 |
1972年 | 3篇 |
1971年 | 2篇 |
1970年 | 3篇 |
1968年 | 2篇 |
排序方式: 共有5701条查询结果,搜索用时 15 毫秒
91.
92.
93.
94.
Sridevi Nair Murugesan Vanathi Ritika Mukhija Radhika Tandon Sandeep Jain Yoko Ogawa 《Indian journal of ophthalmology》2021,69(5):1038
Ocular graft-versus-host disease (oGVHD) occurs as a complication following hematopoietic stem cell transplantation and is associated with significant ocular morbidity resulting in a marked reduction in the quality of life. With no current consensus on treatment protocols, management becomes challenging as recurrent oGVHD often refractory to conventional treatment. Most authors now diagnose and grade the disease based on criteria provided by the National Institutes of Health Consensus Conference (NIH CC) or the International Chronic oGVHD (ICCGVHD) consensus group. This article will provide an insight into the diagnostic criteria of oGVHD, its classification, and clinical severity grading scales. The inflammatory process in oGVHD can involve the entire ocular surface including the eyelids, meibomian gland, corneal, conjunctiva, and lacrimal system. The varied clinical presentations and treatment strategies employed to manage them have been discussed in the present study. The recent advances in ocular surface imaging in oGVHD patients such as the use of meibography and in vivo confocal microscopy may help in early diagnosis and prognostication of the disease. Researching tear proteomics and identification of novel potential tear biomarkers in oGVHD patients is an exciting field as they may help in objectively diagnosing the disease and monitoring the response to treatment. 相似文献
95.
96.
Jyoti Korram Lakshita Dewangan Indrapal Karbhal Rekha Nagwanshi Sandeep K. Vaishanav Kallol K. Ghosh Manmohan L. Satnami 《RSC advances》2020,10(41):24190
An enzyme immobilized glutathione (GSH)-capped CdTe quantum dot (QD)-based fluorescence assay has been developed for monitoring organophosphate pesticides. In principle, GSH-capped CdTe QDs exhibit higher sensitivity towards H2O2 produced from the active enzymatic reaction of acetylcholinesterase (AChE) and choline oxidase (CHOx), which results in the fluorescence (FL) “turn-off” of the GSH-capped CdTe QDs. A “turn-on” FL of the CdTe QDs at 520 nm was recovered in the presence of organophosphate (OP). The FL changes of the GSH-capped CdTe QD/AChE/CHOx biosensor reasonably correspond to the amount of OP pesticides. The detection limit of the CdTe/AChE/CHOx biosensor towards paraoxon, dichlorvos, malathion and triazophos was 1.62 × 10−15 M, 75.3 × 10−15 M, 0.23 × 10−9 M and 10.6 × 10−12 M, respectively. The GSH-capped CdTe QDs/AChE/CHOx biosensor was applied as a FL nanoprobe for assaying the enzymatic activity of AChE. The inhibited AChE was reactivated up to 94% using pyridine oximate (2-PyOx−), and functionalized pyridinium oximates (4-C12PyOx− and 4-C18PyOx−) of varying chain lengths. It was found that the reactivation potency of the tested oximes varied with the chain length of the oximes. This biosensing system offers the promising benefit for the determination of the OP pesticides in food, water and environmental samples.An enzyme immobilized glutathione (GSH)-capped CdTe quantum dot (QD)-based fluorescence assay has been developed for monitoring organophosphate pesticides. 相似文献
97.
98.
99.
Johannes F. Plate Christopher M. Bates Sandeep Mannava Thomas L. Smith Matthew J. Jorgensen Thomas C. Register John R. Stehle Kevin P. High Carol A. Shively Jay R. Kaplan Katherine R. Saul Christopher J. Tuohy 《Journal of shoulder and elbow surgery / American Shoulder and Elbow Surgeons ... [et al.]》2013,22(8):1019-1029
100.
Sharma Chandra Prakash Kumar Ajit Vipin Sharma Vinita Singh Bhim Kumar Gandla Chethan Gupta Sandeep Kumar 《International journal of legal medicine》2019,133(1):65-69
International Journal of Legal Medicine - We examined an online sold product “Hatha Jodi” synonym of “paired arm” for the confirmation of its biological source. It was... 相似文献