全文获取类型
收费全文 | 10854篇 |
免费 | 617篇 |
国内免费 | 24篇 |
专业分类
耳鼻咽喉 | 120篇 |
儿科学 | 596篇 |
妇产科学 | 220篇 |
基础医学 | 1630篇 |
口腔科学 | 114篇 |
临床医学 | 618篇 |
内科学 | 2275篇 |
皮肤病学 | 253篇 |
神经病学 | 558篇 |
特种医学 | 335篇 |
外国民族医学 | 1篇 |
外科学 | 1141篇 |
综合类 | 459篇 |
一般理论 | 6篇 |
预防医学 | 733篇 |
眼科学 | 393篇 |
药学 | 978篇 |
中国医学 | 77篇 |
肿瘤学 | 988篇 |
出版年
2023年 | 56篇 |
2022年 | 55篇 |
2021年 | 217篇 |
2020年 | 129篇 |
2019年 | 186篇 |
2018年 | 264篇 |
2017年 | 201篇 |
2016年 | 240篇 |
2015年 | 276篇 |
2014年 | 379篇 |
2013年 | 486篇 |
2012年 | 659篇 |
2011年 | 713篇 |
2010年 | 405篇 |
2009年 | 346篇 |
2008年 | 530篇 |
2007年 | 608篇 |
2006年 | 560篇 |
2005年 | 486篇 |
2004年 | 440篇 |
2003年 | 397篇 |
2002年 | 372篇 |
2001年 | 298篇 |
2000年 | 283篇 |
1999年 | 225篇 |
1998年 | 83篇 |
1997年 | 60篇 |
1996年 | 63篇 |
1995年 | 58篇 |
1993年 | 49篇 |
1992年 | 154篇 |
1991年 | 145篇 |
1990年 | 127篇 |
1989年 | 132篇 |
1988年 | 155篇 |
1987年 | 121篇 |
1986年 | 123篇 |
1985年 | 122篇 |
1984年 | 103篇 |
1983年 | 67篇 |
1982年 | 49篇 |
1979年 | 73篇 |
1978年 | 68篇 |
1977年 | 54篇 |
1976年 | 55篇 |
1974年 | 60篇 |
1973年 | 68篇 |
1972年 | 51篇 |
1971年 | 59篇 |
1970年 | 58篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
Roy Sampurna Mukherjee Ashutosh Gautam Arunodaya Bera Debbethi Das Amlan 《Proceedings of the National Academy of Sciences, India. Section B.》2022,92(2):415-429
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences - Gall-inducing insects are highly specialized in modifying phenotypes in their hosts. Phytochemical... 相似文献
2.
Kundu Surajit Chakraborty Santam Mukhopadhyay Jayanta Das Syamantak Chatterjee Sanjoy Achari Rimpa Basu Mallick Indranil Das Partha Pratim Arunsingh Moses Bhattacharyyaa Tapesh Ray Soumendranath 《Journal of digital imaging》2022,35(3):408-423
Journal of Digital Imaging - CompreHensive Digital ArchiVe of Cancer Imaging - Radiation Oncology (CHAVI-RO) is a multi-tier WEB-based medical image databank. It supports archiving de-identified... 相似文献
3.
Paul Bishal Purkayastha Karishma Das Bhattacharya Shelley Gogoi Nayanmoni 《Ecotoxicology (London, England)》2022,31(4):581-601
Ecotoxicology - Eutrophication of water bodies and deterioration of water quality are emerging environmental crises. The root causes and consequences of eutrophication are multidirectional. Thus,... 相似文献
4.
5.
6.
Maurya Rajendra Prakash Singh Virendra Pratap Kadir Syeed Mehbub Ul Das Jayant Kumar Bosak Sanjay Kumar Prajapat Manish Kumar Roy Meghna Kushwaha Brijesh Kumar Kumar Anil Al-Mujaini Abdullah 《International ophthalmology》2022,42(4):1193-1203
International Ophthalmology - This study is aimed to determine the frequency, sociodemographic profile, clinical presentation, patterns of injury, treatment and outcomes of cases of... 相似文献
7.
Musunuri Balaji Tripathy Rina Padhi Sunali Panda Aditya K. Das Bidyut K. 《Clinical rheumatology》2022,41(11):3337-3344
Clinical Rheumatology - The distinction between infection and flare in systemic lupus erythematosus (SLE) has always been a dilemma for clinicians as the clinical and biochemical profiles overlap.... 相似文献
8.
Alexander D. Sherry MD Kelsey L. Corrigan MD MPH Ramez Kouzy MD Joseph Abi Jaoude MD Yumeng Yang MS Roshal R. Patel MD Douglas J. Totten MD MBA Neil B. Newman MD MS Prajnan Das MD MS MPH Cullen Taniguchi MD PhD Bruce Minsky MD Rebecca A. Snyder MD MPH C. David Fuller MD PhD Ethan Ludmir MD 《Cancer》2023,129(21):3430-3438
9.
Di Kaijun Lomeli Naomi Bota Daniela A. Das Bhaskar C. 《Journal of neuro-oncology》2019,141(2):267-276
Journal of Neuro-Oncology - Magmas (mitochondria-associated protein involved in granulocyte–macrophage colony-stimulating factor signal transduction) is a nuclear gene that encodes the... 相似文献
10.
Cathy Eng Alexandre A. Jácome Prajnan Das George J. Chang Miguel Rodriguez-Bigas John M. Skibber Robert A. Wolff Wei Qiao Yan Xing Salil Sethi Aki Ohinata Christopher H. Crane 《Clinical colorectal cancer》2019,18(4):301-306
IntroductionSquamous cell carcinoma of the anal canal (SCCA) presents a rising incidence in the United States. Standard of care for locally advanced disease is comprised of infusional 5-fluorouracil with mitomycin C or cisplatin concurrent with radiation therapy (RT). We designed this trial to evaluate the efficacy and safety of a more convenient regimen composed of capecitabine and oxaliplatin.Patients and MethodsThis was a single-arm, phase II trial, with treatment-naive stage II to IIIB (TX,1-4NxM0) SCCA patients. The regimen was composed of capecitabine (825 mg/m2 twice per day for 5 days) and oxaliplatin (50 mg/m2 weekly) during weeks 1 through 6, concurrent with RT (XELOX-XRT; group 1). After the first 11 patients, the study was amended to omit chemotherapy during the third and sixth weeks (group 2). The primary objective was 3-year time to treatment failure (TTF) and safety. Secondary objectives were complete response (CR) rate, locoregional control, colostomy-free survival (CFS), and overall survival (OS).ResultsTwenty patients were enrolled. Seven patients of group 1 (63%) developed Grade 3 toxicity, which reduced to 22% in Group 2. No Grade 4 toxicities were noted. The median RT dose was 55 Gy. CR occurred in 100% of the 19 patients evaluable for response at 12 to 14 weeks. After a median follow-up of 47.6 months, 2 patients had local recurrence and 1 had distant recurrence. Three-year TTF was 90.0%, with similar rates between groups 1 and 2 (respectively, 90.9% vs. 88.8%, P = .984). Three-year CFS was 90.0%. The median OS has not been reached.ConclusionThe XELOX-XRT regimen is safe, with promising efficacy, and should be explored in larger trials for the treatment of locally advanced SCCA. 相似文献