全文获取类型
收费全文 | 247291篇 |
免费 | 19651篇 |
国内免费 | 7826篇 |
专业分类
耳鼻咽喉 | 1269篇 |
儿科学 | 8839篇 |
妇产科学 | 1679篇 |
基础医学 | 21693篇 |
口腔科学 | 3675篇 |
临床医学 | 26426篇 |
内科学 | 58427篇 |
皮肤病学 | 2860篇 |
神经病学 | 26227篇 |
特种医学 | 7231篇 |
外国民族医学 | 12篇 |
外科学 | 25282篇 |
综合类 | 34867篇 |
现状与发展 | 36篇 |
一般理论 | 9篇 |
预防医学 | 18681篇 |
眼科学 | 2408篇 |
药学 | 18123篇 |
201篇 | |
中国医学 | 11324篇 |
肿瘤学 | 5499篇 |
出版年
2024年 | 509篇 |
2023年 | 4694篇 |
2022年 | 7484篇 |
2021年 | 12558篇 |
2020年 | 11847篇 |
2019年 | 9091篇 |
2018年 | 8957篇 |
2017年 | 9002篇 |
2016年 | 9470篇 |
2015年 | 9270篇 |
2014年 | 17347篇 |
2013年 | 19446篇 |
2012年 | 14265篇 |
2011年 | 15397篇 |
2010年 | 12232篇 |
2009年 | 11822篇 |
2008年 | 11812篇 |
2007年 | 11559篇 |
2006年 | 10384篇 |
2005年 | 8711篇 |
2004年 | 7464篇 |
2003年 | 6379篇 |
2002年 | 5422篇 |
2001年 | 4708篇 |
2000年 | 3909篇 |
1999年 | 3336篇 |
1998年 | 3130篇 |
1997年 | 2833篇 |
1996年 | 2554篇 |
1995年 | 2343篇 |
1994年 | 2156篇 |
1993年 | 1823篇 |
1992年 | 1721篇 |
1991年 | 1534篇 |
1990年 | 1220篇 |
1989年 | 1061篇 |
1988年 | 967篇 |
1987年 | 882篇 |
1986年 | 742篇 |
1985年 | 892篇 |
1984年 | 755篇 |
1983年 | 463篇 |
1982年 | 525篇 |
1981年 | 461篇 |
1980年 | 348篇 |
1979年 | 301篇 |
1978年 | 252篇 |
1977年 | 204篇 |
1976年 | 185篇 |
1975年 | 83篇 |
排序方式: 共有10000条查询结果,搜索用时 218 毫秒
171.
王俊平 《中国继续医学教育》2020,(3):183-185
目的探讨对冠心病心绞痛患者给予健康教育联合心理护理干预后对其生活质量等方面产生的影响。方法选择我院2017年4月-2019年2月收治的100例冠心病心绞痛患者作为实验对象;抽签法分组后探究每组患者护理方式;对照组(50例):选择基础护理方式展开疾病护理;试验组(50例):选择基础护理+健康教育+心理护理方式展开疾病护理;对比各组患者表现出的护理工作满意度以及生活质量评定差异。结果试验组冠心病心绞痛患者护理工作总满意度(98.00%)高于对照组(82.00%)明显(P<0.05);试验组冠心病心绞痛患者睡眠情感、社会生活、精力以及躯体活动评分均高于对照组(P<0.05)。结论冠心病心绞痛患者在接受临床护理工作期间,对于护理工作满意度的提升,各项生活质量指标(睡眠情感、社会生活、精力以及躯体活动)评分结果的提升,均获得明显作用效果,最终对于冠心病心绞痛患者生活质量以及康复状态的显著提升,奠定基础。 相似文献
172.
目的 分析2007-2017年浙江省24 388例罕见病住院病例特征,为制定罕见病防控策略提供依据。方法 收集2007-2017年浙江省10家三级甲等(三甲)医院罕见病住院病例资料和各年度住院数,进行描述性统计分析。结果 罕见病病例共24 388例,占住院总例数的2.69‰(24 388/9 054 201),病例数居前3位的疾病类型依次为"血液和造血器官疾病以及某些涉及免疫机能的异常"(占32.81%,8 001/24 388)、"先天性畸形、变形和染色体异常"(占24.87%,6 065/24 388)和"神经系统疾病"(占19.01%,4 635/24 388);2007-2017年罕见病病例数呈逐年增长趋势,年均增幅19.69%,而罕见病例数占同期住院总例数比例仅在2016-2017年明显上升,各类型罕见病时间分布呈不同特征;罕见病的病例数男女性别比为1.35:1(13 990/10 398),男女性别比最高的3类疾病依次为"消化系统疾病"(4.45:1,1 180/265)、"损伤、中毒和外因的某些其他后果"(3.51:1,281/80)和"神经系统疾病"(2.26:1,3 213/1 422);各年龄段罕见病类型、各类型罕见病年龄分布均呈不同特征;病例数居前10位的疾病占全部罕见病例数的53.55%(13 060/24 388),其中前3位疾病分别为成人粒细胞缺乏症(14.41%,3 515/24 388)、皮质基底核退化症(7.60%,1 854/24 388)和亨诺克-舍恩莱因紫癜(6.01%,1 466/24 388)。结论 本研究分析的浙江省2007-2017年24 388例罕见病住院病例的特征资料,是推动我国罕见病的研究、监测或登记数据库构建、制定防控策略的参考依据。 相似文献
173.
《Neuro-Chirurgie》2022,68(2):196-201
BackgroundTumor-to-tumor metastases are extremely rarely reported lesions, which usually involve an indolent lesion hosting a more aggressive neoplasm. We present an unusual initial manifestation of a previously unknown clear cell renal cell carcinoma as a tumor-to-tumor metastasis in a typical meningothelial meningioma.Case reportA 73-year old patient with transient left slight monoparesis was addressed to our Neurosurgical Department after being evaluated by his general practitioner and passing a cerebral MRI which revealed a right frontotemporal mass attached to the meninge. At presentation, no deficits were identified; therefore an elective surgery was proposed. Histological analysis revealed a typical meningothelial meningioma containing a metastatic clear cell renal cell carcinoma. Additional thoraco-abdominal computer tomography identified a 6 cm diameter lesion within the right kidney with radiological features highly suggestive of a primary clear cell renal cell carcinoma.ConclusionOur case highlights the need for a specialized neuropathological approach to clinical and imagistic indolent meningiomas, as they may require important differential diagnosis that can highly impact the treatment and follow-up of brain tumor patients. 相似文献
174.
175.
176.
177.
Miju Bae Sung Woon Chung Chung Won Lee Up Huh Min Su Kim Seung Hwan Song 《Asian journal of surgery / Asian Surgical Association》2019,42(1):235-239
Background
In Leriche syndrome, postoperative graft thrombosis remains one of the most significant clinical challenges.Methods
We reviewed 51 patients who underwent surgery for aortoiliac occlusive disease at our hospital from January 2007 to December 2014. The factors associated with graft patency were determined using the Cox proportional hazard model.Results
The 2-year prosthetic graft patency rate was 72.5%. Younger age (p = 0.017, Odd ratio (OR) = 1.112), postoperative uncontrolled hypertension (p = 0.044, OR = 3.797), and associated Trans Atlantic Inter-Society Consensus for the Management of Peripheral Arterial Disease II (TASC II) D femoropopliteal lesion (p = 0.008, OR = 11.139) were significantly related factors for prosthetic graft patency after surgical repair. The existing comorbidities of the patients that indicated the need for axillo-bifemoral bypass seemed to be related to lower graft patency or other complications.Conclusions
For better graft patency after an open surgical repair of Leriche syndrome, strict postoperative hypertension control and distal run-off resolution are necessary. 相似文献178.
179.
《Clinical neurophysiology》2019,130(9):1562-1569
ObjectiveConventional deep brain stimulation (DBS) systems with ring-shaped leads generate spherical electrical fields. In contrast, novel directional leads use segmented electrodes. Aim of this study was to quantify the impedance variations over time in subjects with the directional Cartesia-Boston® system.MethodsImpedance records, programming settings, and clinical data of 11 consecutive Parkinsonian patients implanted with DBS directional leads in two Italian centers (Udine and Vicenza) were retrospectively evaluated. Data were collected before starting stimulation (in the operating room and at days 5 and 40) and after switching stimulation on at the successive follow-up visits (1, 6 and 12 months).ResultsDirectional leads have significantly higher impedance than ring leads. Stimulated contacts had always lower impedance compared to non-stimulated contacts. Before DBS-on, all contacts had higher impedance in the operating room, with an initial decrease five days post-surgery and a subsequent increase at day 40, more evident for directional contacts. The impedance of directional leads increased post-implantation at 1 and 6 months with a plateau at 12 months.ConclusionsThere was a significant difference between the directional and ring leads at baseline (before activation of DBS) and during follow-up (chronic DBS).SignificanceOur study reveals new information about the impedance of segmented electrodes that is useful for patient management during the initial test period, as well as during long-term DBS follow-up. 相似文献
180.