全文获取类型
收费全文 | 981篇 |
免费 | 173篇 |
国内免费 | 17篇 |
专业分类
耳鼻咽喉 | 5篇 |
儿科学 | 13篇 |
妇产科学 | 15篇 |
基础医学 | 87篇 |
口腔科学 | 26篇 |
临床医学 | 83篇 |
内科学 | 140篇 |
皮肤病学 | 46篇 |
神经病学 | 58篇 |
特种医学 | 36篇 |
外科学 | 78篇 |
综合类 | 229篇 |
预防医学 | 63篇 |
眼科学 | 21篇 |
药学 | 88篇 |
15篇 | |
中国医学 | 33篇 |
肿瘤学 | 135篇 |
出版年
2024年 | 5篇 |
2023年 | 84篇 |
2022年 | 119篇 |
2021年 | 135篇 |
2020年 | 114篇 |
2019年 | 49篇 |
2018年 | 59篇 |
2017年 | 29篇 |
2016年 | 60篇 |
2015年 | 65篇 |
2014年 | 107篇 |
2013年 | 68篇 |
2012年 | 93篇 |
2011年 | 48篇 |
2010年 | 33篇 |
2009年 | 25篇 |
2008年 | 7篇 |
2007年 | 14篇 |
2006年 | 12篇 |
2005年 | 3篇 |
2004年 | 5篇 |
2003年 | 2篇 |
2002年 | 2篇 |
2001年 | 2篇 |
2000年 | 1篇 |
1999年 | 2篇 |
1998年 | 2篇 |
1997年 | 4篇 |
1996年 | 9篇 |
1995年 | 3篇 |
1994年 | 2篇 |
1993年 | 4篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
排序方式: 共有1171条查询结果,搜索用时 15 毫秒
1.
2.
《Clinics and research in hepatology and gastroenterology》2022,46(9):102020
Background and aimsWe intended to investigate the predictors for bowel resection in infants with necrotizing enterocolitis (NEC). We further developed a scoring system for better predicting bowel resection.MethodsA total of 207 infants who underwent surgical management at Children's Hospital, Chongqing Medical University between April 2008 and December 2020 were identified for the following investigation. Bowel resection was reviewed among the infants who underwent the procedure. Potential parameters related to bowel resection were explored using a multiple logistic regression method, and then a scoring system was developed.ResultsAmong the 207 patients who underwent operative intervention that were reviewed, 109 infants underwent bowel resection. Multivariate logistic regression analysis showed that birth weight, hypotension, neutropenia, pneumoperitoneum, acidosis, and intestinal wall thickness were predictors related to the occurrence of bowel resection. A 6-point scoring system was further developed based on the obtained total coefficient, and the infants could be divided into low-, moderate- and high-risk groups according to cut values of 7 and 13.ConclusionThe results of this study demonstrated that severe NEC features and low birth weight were associated with bowel resection. The risk scoring system could accurately separate infants that were suspected to have bowel loss during surgery. 相似文献
3.
《Cancer radiothérapie》2022,26(8):1034-1044
PurposeAssess the feasibility of a randomized controlled trial (RCT) exploring the use of medical imaging as a therapeutic education (TPE) intervention in external radiation therapy.Materials and methodsExperimental feasibility trial of “RCT” type carried out in a single-center, between November 2019 and March 2020, following adult patients treated by thoracic radiotherapy. In addition to the information usually given, the experimental group benefited from an intervention consisting in the visualization of their own medical images using the open-source software “Stone of Orthanc”.ResultsForty-nine patients were recruited with a refusal rate of 8.16% (4/49). 20 patients were withdrawn from the study for health reasons (COVID), 10 for medical reasons. All the remaining 15 participants completed the process. Although not significant, the experimental group showed a median gain in the perception of knowledge compared to the control group (+ 1.9 (1.6 – 2.2)) vs (+ 1.4 (1.4 – 1.8)), as well as a decrease in scores related to anxiety (? 3.0 (?4.5 - (?2.0)) vs ? 1.0 (?5.0 - 0.0)) and emotional distress ((? 5.0 (? 7.5 - (? 3.5)) vs (? 2.0 (? 5.0 - (? 1.0)) A significant reduction (p = 0.043) is observed for the depression score ((? 2.0 (?3.0 - (?1.5)) vs (0.0 (0.0 – 0.0)).ConclusionThis study demonstrates the feasibility of the project, with promising preliminary results. Some adaptations in order to conduct a larger-scale RCT are highlighted. 相似文献
4.
5.
6.
文章阐述了我国医药制造业的基本现状,对31个省市区(港、澳、台地区除外)的医药制造业竞争力,主要从市场占有率和市场竞争优势系数两个方面,进行了比较分析。市场占有率的优势主要集中在东部发达地区,但是市场竞争优势系数的优势分布较为均匀,各地区均有其自身的优势。 相似文献
7.
8.
9.
10.
目的 探讨癌胚抗原相关细胞黏附分子(CEACAM1)源性多肽KM17对血小板聚集、释放、黏附功能的影响。方法 采用血小板聚集仪观察多肽KM17对凝血酶、胶原、花生四烯酸(AA)、二磷酸腺苷(ADP)等激动剂诱导的血小板聚集的影响;流式细胞术观察多肽KM17对ADP激活血小板后P-选择素释放的影响;显微镜下观察多肽KM17对血小板静态黏附于胶原基质的影响。结果 多肽KM17能显著促进ADP诱导的血小板聚集且呈剂量依赖(P <0.05),而对AA、胶原及凝血酶诱导的血小板聚集差异均无统计学意义(P>0.05);此外,多肽KM17对ADP激活血小板后P-选择素释放及血小板静态黏附于胶原基质的差异也无统计学意义(P>0.05)。结论 多肽KM17可明显促进ADP诱导的血小板聚集,但对ADP活化血小板后P-选择素释放及血小板静态黏附于胶原基质未见明显作用。 相似文献