全文获取类型
收费全文 | 516篇 |
免费 | 189篇 |
国内免费 | 12篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 6篇 |
妇产科学 | 2篇 |
基础医学 | 51篇 |
口腔科学 | 4篇 |
临床医学 | 34篇 |
内科学 | 71篇 |
皮肤病学 | 4篇 |
神经病学 | 29篇 |
特种医学 | 12篇 |
外科学 | 341篇 |
综合类 | 48篇 |
预防医学 | 75篇 |
眼科学 | 6篇 |
药学 | 13篇 |
中国医学 | 8篇 |
肿瘤学 | 11篇 |
出版年
2024年 | 1篇 |
2023年 | 8篇 |
2022年 | 16篇 |
2021年 | 61篇 |
2020年 | 58篇 |
2019年 | 54篇 |
2018年 | 57篇 |
2017年 | 68篇 |
2016年 | 62篇 |
2015年 | 45篇 |
2014年 | 63篇 |
2013年 | 22篇 |
2012年 | 16篇 |
2011年 | 27篇 |
2010年 | 13篇 |
2009年 | 16篇 |
2008年 | 13篇 |
2007年 | 13篇 |
2006年 | 22篇 |
2005年 | 20篇 |
2004年 | 10篇 |
2003年 | 4篇 |
2002年 | 9篇 |
2001年 | 4篇 |
2000年 | 6篇 |
1999年 | 5篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1993年 | 1篇 |
1992年 | 6篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1989年 | 1篇 |
1987年 | 2篇 |
1981年 | 1篇 |
1980年 | 2篇 |
1974年 | 1篇 |
排序方式: 共有717条查询结果,搜索用时 328 毫秒
11.
12.
David P. Al-Adra Laura Hammel John Roberts E. Steve Woodle Deborah Levine Didier Mandelbrot Elizabeth Verna Jayme Locke Jonathan D'Cunha Maryjane Farr Deirdre Sawinski Piyush K. Agarwal Jennifer Plichta Sandhya Pruthi Deborah Farr Richard Carvajal John Walker Fiona Zwald Thomas Habermann Morie Gertz Philip Bierman Don S. Dizon Carrie Langstraat Talal Al-Qaoud Scott Eggener John P. Richgels George J. Chang Cristina Geltzeiler Gonzalo Sapisochin Rocco Ricciardi Alexander S. Krupnick Cassie Kennedy Nisha Mohindra David P. Foley Kymberly D. Watt 《American journal of transplantation》2021,21(2):460-474
Patients undergoing evaluation for solid organ transplantation (SOT) often have a history of malignancy. Although the cancer has been treated in these patients, the benefits of transplantation need to be balanced against the risk of tumor recurrence, especially in the setting of immunosuppression. Prior guidelines of when to transplant patients with a prior treated malignancy do not take in to account current staging, disease biology, or advances in cancer treatments. To develop contemporary recommendations, the American Society of Transplantation held a consensus workshop to perform a comprehensive review of current literature regarding cancer therapies, cancer stage-specific prognosis, the kinetics of cancer recurrence, and the limited data on the effects of immunosuppression on cancer-specific outcomes. This document contains prognosis based on contemporary treatment and transplant recommendations for breast, colorectal, anal, urological, gynecological, and nonsmall cell lung cancers. This conference and consensus documents aim to provide recommendations to assist in the evaluation of patients for SOT given a history of a pretransplant malignancy. 相似文献
13.
14.
Chris J. Callaghan Benedict L. Phillips Theodora Foukaneli Susan Robinson Christopher J. E. Watson 《American journal of transplantation》2021,21(4):1376-1381
Ex situ normothermic machine perfusion (NMP) is being used increasingly in the assessment of higher risk deceased donor organs and to facilitate prolonged organ storage. Third-party packed red blood cells (pRBCs) are often used as an oxygen carrier in the perfusate of ex situ NMP. Despite the increasing interest in NMP, comparatively little attention has been paid to the appropriate selection of pRBCs. This includes the choice of ABO blood group and Rhesus D status, the need for special requirements for selected recipients, and the necessity for traceability of blood components. Flushing organs with cold preservation solution after NMP removes the overwhelming majority of third-party allogeneic pRBCs, but residual pRBCs within the organ may have biologically relevant effects following implantation as they enter the recipient's circulation. This review considers these issues, and suggests that national transplant and blood transfusion agencies work together to develop a co-ordinated approach within each country. This is especially important given the possibility of organ re-allocation between centers after ex situ NMP, and the ongoing development of organ perfusion hubs. 相似文献
15.
16.
Liza Johannesson Anji Wall Andreas Tzakis Cristiano Quintini Elliott G. Richards Kathleen O’Neill Paige M. Porrett Giuliano Testa 《American journal of transplantation》2021,21(5):1699-1704
The parallel emergence of uterus transplantation (UTx) and other transplantation innovations including face and hand transplantation led to the categorization of the uterus as a vascular composite allograft (VCA). With >60 transplants and >20 births worldwide, UTx is transitioning rapidly from a research endeavor to an effective treatment option for women with uterine factor infertility. While it originally made sense to group the innovations under one umbrella, it is time to revisit the designation of UTx as a VCA. We describe how UTx needs unique policy, procedural codes, insurance contracts, and educational initiatives. We contend that separating UTx from VCAs may become necessary in the future to avoid hindering the growth and regulation of this field. 相似文献
17.
18.
19.
20.
半夏综合栽培技术研究 总被引:5,自引:0,他引:5
目的:研究氮、磷、钾和播种量4因素对半夏产量影响。方法:采用4因子3水平正交组合试验与单因素试验进行研究。结果与结论:对产量作用效果依次为播种量>氮>钾>磷;其合理施肥水平为施N48.0-96.0kg·hm-2,P2O590kg·hm-2K2O 90.0kg·hm-2,播种量为3000.0-3750.0kg·hm-2。 相似文献