全文获取类型
收费全文 | 24855篇 |
免费 | 1759篇 |
国内免费 | 928篇 |
专业分类
耳鼻咽喉 | 101篇 |
儿科学 | 399篇 |
妇产科学 | 193篇 |
基础医学 | 2195篇 |
口腔科学 | 254篇 |
临床医学 | 3213篇 |
内科学 | 4977篇 |
皮肤病学 | 166篇 |
神经病学 | 956篇 |
特种医学 | 1684篇 |
外国民族医学 | 5篇 |
外科学 | 4142篇 |
综合类 | 3925篇 |
现状与发展 | 4篇 |
预防医学 | 859篇 |
眼科学 | 1154篇 |
药学 | 1598篇 |
10篇 | |
中国医学 | 630篇 |
肿瘤学 | 1077篇 |
出版年
2024年 | 24篇 |
2023年 | 397篇 |
2022年 | 502篇 |
2021年 | 907篇 |
2020年 | 843篇 |
2019年 | 775篇 |
2018年 | 712篇 |
2017年 | 750篇 |
2016年 | 801篇 |
2015年 | 818篇 |
2014年 | 1437篇 |
2013年 | 1581篇 |
2012年 | 1349篇 |
2011年 | 1436篇 |
2010年 | 1250篇 |
2009年 | 1261篇 |
2008年 | 1328篇 |
2007年 | 1358篇 |
2006年 | 1261篇 |
2005年 | 1084篇 |
2004年 | 909篇 |
2003年 | 842篇 |
2002年 | 706篇 |
2001年 | 618篇 |
2000年 | 507篇 |
1999年 | 422篇 |
1998年 | 386篇 |
1997年 | 408篇 |
1996年 | 294篇 |
1995年 | 293篇 |
1994年 | 309篇 |
1993年 | 222篇 |
1992年 | 211篇 |
1991年 | 186篇 |
1990年 | 146篇 |
1989年 | 150篇 |
1988年 | 148篇 |
1987年 | 116篇 |
1986年 | 121篇 |
1985年 | 127篇 |
1984年 | 84篇 |
1983年 | 52篇 |
1982年 | 87篇 |
1981年 | 70篇 |
1980年 | 58篇 |
1979年 | 53篇 |
1978年 | 36篇 |
1977年 | 35篇 |
1976年 | 27篇 |
1975年 | 12篇 |
排序方式: 共有10000条查询结果,搜索用时 156 毫秒
1.
2.
Forgiveness has been found one substantial element in the recovery for women survivors from intimate partner violence following the termination of the abusive relationship. To further investigate the details of forgiveness in this specific context, the present study explored the process of forgiveness using grounded theory. In-depth and semi-structured interviews were conducted with 25 Chinese women survivors of IPV. The findings suggest that forgiveness is a strength-based process including empowerment, transformation, and integration phases. In the empowerment phase, survivors obtain strength at the intrapersonal, behavioural, and interpersonal levels. In the transformation phase, survivors complete cognitive transformation for their IPV experiences and emotional transformation towards former partners. In the integration phase, survivors—now freed from the past—reflect upon and apply the changes they have undergone. Two trajectories in the process were found. One trajectory is going through stages sequentially and the other trajectory is experiencing back and forth between empowerment and transformation stages before moving into the integration stage. The study's findings broaden our knowledge of the strength-based forgiveness process that women survivors of IPV undergo during recovery. Practitioners and policymakers could develop programmes and policies that support forgiveness by holistically facilitating their recovery and empowerment like assistance in dealing with life difficulties and promoting their reconnection with social networks. To improve the transferability and validity of the findings, the forgiveness of survivors of IPV could be explored in a diverse sample (e.g., survivors with low educational background or live in the rural area). 相似文献
3.
《Journal of vascular and interventional radiology : JVIR》2022,33(3):249-254.e1
An ovine iliac vein thrombosis model was devised to test a wall-contacting rotational thrombectomy device. Thrombosis was successfully induced in 9 sheep with an average clot length of 31 mm ± 12 and >60% vessel occlusion on angiography. The thrombus was subsequently removed, maintaining normal intraoperative pulmonary arterial pressure (5.9 mm Hg ± 3.6) and complete distal reperfusion after thrombectomy. Additionally, the sheep were without signs of vascular trauma or embolic complications on gross necropsy and histopathologic analysis. The findings from this study support the use of an ovine iliac deep vein thrombosis model for testing of a lower extremity thrombectomy device. 相似文献
4.
5.
6.
7.
《Journal of vascular and interventional radiology : JVIR》2022,33(12):1476-1484.e2
PurposeTo evaluate temporal trends, practice variation, and associated outcomes with the use of intravascular ultrasound (US) during deep venous stent placement among Medicare beneficiaries.Materials and MethodsAll lower extremity deep venous stent placement procedures performed between January 1, 2017, and December 31, 2019 among Medicare beneficiaries were included. Temporal trends in intravascular US use were stratified by procedural setting and physician specialty. The primary outcome was a composite of 12-month all-cause mortality, all-cause hospitalization, or repeat target vessel intervention. The secondary outcome was a composite of 12-month stent thrombosis, embolization, or restenosis.ResultsAmong the 20,984 deep venous interventions performed during the study period, 15,184 (72.4%) utilized intravascular US. Moderate growth in intravascular US use was observed during the study period in all clinical settings. There was a variation in the use of intravascular US among all operators (median, 77.3% of cases; interquartile range, 20.0%–99.2%). In weighted analyses, intravascular US use during deep venous stent placement was associated with a lower risk of both the primary (adjusted hazard ratio, 0.72; 95% confidence interval [CI], 0.69–0.76; P < .001) and secondary (adjusted hazard ratio, 0.32; 95% CI, 0.27–0.39; P < .001) composite end points.ConclusionsIntravascular US is frequently used during deep venous stent placement among Medicare beneficiaries, with further increase in use from 2017 to 2019. The utilization of intravascular US as part of a procedural strategy was associated with a lower cumulative incidence of adverse outcomes after the procedure, including venous stent thrombosis and embolization. 相似文献
8.
9.
目的 运用CT区分脾脏血管性病变与淋巴瘤。方法 回顾性分析20例经手术、穿刺病理学检查证实的脾脏病变的发病年龄、性别、脾脏指数、病变大小、数目、有无液化、钙化、强化幅度、强化方式等特征,并进行统计学分析。结果 20例脾脏病变中,11例血管性病变(6例海绵状血管瘤,3例窦岸细胞血管瘤,2例硬化性血管瘤样结节性转化),9例淋巴瘤;两组间发病年龄、病变大小、数目、有无液化、钙化等差异无统计学意义;两组间脾脏指数、动脉期强化幅度差异具有统计学意义(P<0.05)。5例海绵状血管瘤呈不均匀性强化,1例呈渐进性填充式强化,2例窦岸细胞血管瘤呈“雀斑征”,1例硬化性血管瘤样结节性转化呈“辐轮征”;9例淋巴瘤实质部分均呈均匀、轻中度强化。结论 脾脏血管性病变与淋巴瘤CT表现不同,CT有助于明确诊断。 相似文献
10.