全文获取类型
收费全文 | 18645篇 |
免费 | 1117篇 |
国内免费 | 136篇 |
专业分类
耳鼻咽喉 | 158篇 |
儿科学 | 417篇 |
妇产科学 | 352篇 |
基础医学 | 2142篇 |
口腔科学 | 733篇 |
临床医学 | 1795篇 |
内科学 | 4035篇 |
皮肤病学 | 392篇 |
神经病学 | 1150篇 |
特种医学 | 425篇 |
外国民族医学 | 5篇 |
外科学 | 2442篇 |
综合类 | 482篇 |
一般理论 | 14篇 |
预防医学 | 1543篇 |
眼科学 | 739篇 |
药学 | 1776篇 |
中国医学 | 211篇 |
肿瘤学 | 1087篇 |
出版年
2024年 | 30篇 |
2023年 | 246篇 |
2022年 | 685篇 |
2021年 | 1070篇 |
2020年 | 705篇 |
2019年 | 849篇 |
2018年 | 1008篇 |
2017年 | 713篇 |
2016年 | 772篇 |
2015年 | 781篇 |
2014年 | 1046篇 |
2013年 | 1205篇 |
2012年 | 1642篇 |
2011年 | 1690篇 |
2010年 | 998篇 |
2009年 | 762篇 |
2008年 | 1109篇 |
2007年 | 984篇 |
2006年 | 828篇 |
2005年 | 704篇 |
2004年 | 555篇 |
2003年 | 454篇 |
2002年 | 389篇 |
2001年 | 49篇 |
2000年 | 58篇 |
1999年 | 58篇 |
1998年 | 50篇 |
1997年 | 44篇 |
1996年 | 43篇 |
1995年 | 35篇 |
1994年 | 18篇 |
1993年 | 33篇 |
1992年 | 24篇 |
1991年 | 17篇 |
1990年 | 19篇 |
1989年 | 20篇 |
1988年 | 17篇 |
1987年 | 10篇 |
1986年 | 13篇 |
1985年 | 12篇 |
1984年 | 19篇 |
1983年 | 17篇 |
1982年 | 16篇 |
1981年 | 11篇 |
1980年 | 12篇 |
1979年 | 13篇 |
1978年 | 10篇 |
1976年 | 10篇 |
1974年 | 8篇 |
1973年 | 7篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
Hand surgery is a unique field that incorporates multiple specialties, aiming to provide the patient with a best possible functional and aesthetic results. Hand surgeons deal with different pathologies that require skills in several aspects of surgery. The field of hand surgery has evolved significantly over the past decades across the globe. This specialty has also been evolving in Saudi Arabia over the past 25 years. Some of the services offered to patients include specialized centers for brachial plexus, peripheral nerve, and pediatric hand surgery as well as centers for work-related hand injuries. There has also been significant contribution to the hand surgery literature from the hand surgeons working in Saudi Arabia, with hundreds of papers published in journals pertaining to hand surgery, orthopedic surgery, and plastic surgery, as well as the publication of several novel mutations causing congenital hand defects in journals concerned with genetics. The recent approval of a hand and microsurgery fellowship program in Saudi Arabia will also help boost this field in the country and the region. 相似文献
82.
83.
84.
Raji-amirhasani Alireza Khaksari Mohammad Darvishzadeh Mahani Fatemeh Hajializadeh Zahra 《Clinical and experimental nephrology》2021,25(8):807-821
Clinical and Experimental Nephrology - Acute kidney injury (AKI) is a complex disorder and a clinical condition characterized by acute reduction in renal function. If AKI is not treated, it can... 相似文献
85.
Jalaei Nobari Hossein Rashedi Jalil Mahdavi Poor Behroz Asgharzadeh Mohammad 《Archives of sexual behavior》2022,51(7):3219-3220
Archives of Sexual Behavior - 相似文献
86.
Hamed Nikoupour MD Peyman Arasteh MD MPH Alireza Shamsaeefar MD Fardin Ghanbari MD Arash Boorboor MD Ali Mosa Jafar Almayali MD Mojtaba Shafiekhani PharmD Ph.D Pirouz Samidoust MD Reza Shahriarirad MD Alireza Shojazadeh MD Keivan Ranjbar MD Mohammad Hasan Darabi MD Sina Tangestanipour MD Seyed Morteza Hosseini MD Leila Zahiri MD Saman Nikeghbalian MD 《JPEN. Journal of parenteral and enteral nutrition》2022,46(4):946-957
87.
Aileen Azari-Yaam Mohammad Reza Abdolsalehi Mohammad Vasei Moeinadin Safavi Mehrzad Mehdizadeh 《Head and neck pathology》2021,15(1):352
Rosai–Dorfman disease (RDD) is a rare and self-limiting disease process that presents most commonly in young patients as massive, painless, cervical lymphadenopathy. Extranodal involvement may also occur. Histopathologic evaluation is the main diagnostic modality. We report an unusual presentation of RDD with cervical lymphadenopathy and an incidentally discovered sinonasal mass, clinically worrisome for malignancy. We emphasize that a high index of clinical suspicion is critical for accurate diagnosis of RDD. Clinicians and pathologists should consider RDD in a differential diagnosis of cervical lymphadenopathy, especially in young patients. 相似文献
88.
89.
Terzikhan Natalie Hofman Albert Goudsmit Jaap Ikram Mohammad Arfan 《European journal of epidemiology》2021,36(3):319-324
European Journal of Epidemiology - Initial results from various phase-III trials on vaccines against SARS-CoV-2 are promising. For proper translation of these results to clinical guidelines, it is... 相似文献
90.
Antisense oligodeoxynucleotides against thrombomodulin suppress the cell growth of lung adenocarcinoma cell line A549 总被引:2,自引:0,他引:2
Thrombomodulin (TM), an anticoagulant factor on endothelial cells, is known to be expressed in non-endothelial cells as well. In neoplastic cells of lung adenocarcinomas, TM is expressed but its correlation with growth potential has not been studied. As TM expression has a negative correlation with cell proliferation in lung squamous cell carcinomas, we examined its growth effect on lung adenocarcinoma cells of the A549 cell line by inhibiting TM expression with antisense oligodeoxynucleotides (ODN). In the antisense ODN transfected cells, the expression of TM mRNA was decreased to 49% at 12 h and 47% at 24 h, which was in accordance with TM expression at the protein level. By IdU (5-iodo-2'-deoxyuridine) incorporation assay, the growth of A549 cells was found to have decreased to 36% of the control level at 24 h post-transfection. The suppression of cell growth was maintained in a concentration-dependent manner for 48 h after transfection, when the expression of TM started to rebound. In the transfected cells, the G1 phase cell count was reduced to 60.7%, compared with 68.2% in the control transfectants. These results suggest that TM expression may play a suppressive role in the proliferation activity of A549 lung adenocarcinoma cells. 相似文献