首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   58588篇
  免费   3787篇
  国内免费   1651篇
耳鼻咽喉   389篇
儿科学   1002篇
妇产科学   671篇
基础医学   4909篇
口腔科学   1045篇
临床医学   5233篇
内科学   5997篇
皮肤病学   483篇
神经病学   3117篇
特种医学   1377篇
外国民族医学   6篇
外科学   5737篇
综合类   11635篇
现状与发展   1篇
一般理论   4篇
预防医学   5070篇
眼科学   934篇
药学   4887篇
  117篇
中国医学   9651篇
肿瘤学   1761篇
  2024年   153篇
  2023年   991篇
  2022年   1663篇
  2021年   2503篇
  2020年   2297篇
  2019年   2337篇
  2018年   2013篇
  2017年   1955篇
  2016年   1841篇
  2015年   1587篇
  2014年   3773篇
  2013年   3303篇
  2012年   3343篇
  2011年   4121篇
  2010年   3728篇
  2009年   2735篇
  2008年   2520篇
  2007年   2729篇
  2006年   2536篇
  2005年   2117篇
  2004年   1702篇
  2003年   1611篇
  2002年   1133篇
  2001年   1018篇
  2000年   833篇
  1999年   770篇
  1998年   585篇
  1997年   561篇
  1996年   452篇
  1995年   517篇
  1994年   475篇
  1993年   363篇
  1992年   350篇
  1991年   316篇
  1990年   285篇
  1989年   270篇
  1988年   275篇
  1987年   234篇
  1986年   219篇
  1985年   450篇
  1984年   436篇
  1983年   346篇
  1982年   383篇
  1981年   377篇
  1980年   351篇
  1979年   319篇
  1978年   286篇
  1977年   255篇
  1976年   194篇
  1975年   113篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
本文对武汉地区健康老年人(60岁以上)81人和老年前期(45~59岁)75人进行了动脉血气检测,以探讨健康老年人血气及酸碱之正常参考值。其结果:pH 7.44±0.03,PaCO_2 4.77±0.65kPa,PaO_2 10.89±1.03kPa,HCO_3-24.08±3.02mmol/L,BE 0.75±2.77mmol/L,TCO_2 25.25±3.15 mmol/L,SaO_2 0.96±0.01,老年人与老年前期相比较,差别不明显(P>0.05)。  相似文献   
92.
方芳 《中华医护杂志》2007,4(11):1010-1011
目的探讨老年骨髓炎患者围术期护理的体会及经验。方法对32例老年骨髓炎患者围术期护理经验进行分析和总结。结果全组32例患者通过手术治疗及合理护理措施均得到治愈,无褥疮、肺部及泌尿系感染等并发症发生。结论老年骨髓炎患者体质差,合并症多,护理需认真、细致,并且根据术前、术中、术后按不同病情制订个案护理计划,预防并发症,能有效地提高手术成功率。  相似文献   
93.
外伤性延迟性脾破裂的诊断和治疗(附21例报告)   总被引:1,自引:0,他引:1  
目的探讨外伤性延迟性脾破裂的发病规律、临床特点、诊断和治疗方法。方法结合国内外资料及本组病例进行回顾性分析。结果明确诊断16例,误诊为肝破裂2例,宫外孕破裂2例,脾肿瘤1例。21例均手术治疗,行脾切除14例,其中保留副脾2例;脾切除加自体脾组织网膜内移植术3例;脾缝合修补术3例;脾部分切除术1例。死亡1例,原因有就诊晚、失血性休克。结论本病由于腹腔内出血与受伤时间间隔长,容易误诊。诊断除依靠病史、临床表现外,应及时进行腹腔穿刺、B超及CT检查。治疗以脾切除为主,可根据病情、脾破裂的程度以及是否有合并伤等情况采取保脾手术。  相似文献   
94.
Background and Purpose . Patients with multiple sclerosis (MS) tend to have movement difficulties, and the effect of physiotherapy for this group of patients has been subjected to limited systematic research. In the present study physiotherapy based on the Bobath concept, applied to MS patients with balance and gait problems, was evaluated. The ability of different functional tests to demonstrate change was evaluated. Method . A single‐subject experimental study design with ABAA phases was used, and two patients with relapsing–remitting MS in stable phase were treated. Tests were performed 12 times, three at each phase: A (at baseline); B (during treatment); A (immediately after treatment); and A (after two months). The key feature of treatment was facilitation of postural activity and selective control of movement. Several performance and self‐report measures and interviews were used. Results . After intervention, improved balance was shown by the Berg Balance Scale (BBS) in both patients, and improved quality of gait was indicated by the Rivermead Visual Gait Assessment (RVGA). The patients also reported improved balance and gait function in the interviews and scored their condition as ‘much improved’. Gait parameters, recorded by an electronic walkway, changed, but differently in the two patients. Among the physical performance tests the BBS and the RVGA demonstrated the highest change, while no or minimal change was demonstrated by the Rivermead Mobility Index (RMI) and Ratings of Perceived Exertion (RPE). Conclusion . The findings indicate that balance and gait can be improved after physiotherapy based on the Bobath concept, but this should be further evaluated in larger controlled trials of patients with MS. Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   
95.
Most of the techniques described in the literature for the repair of chronic partial ACL tears, don’t spare the intact portion of the ligament. The aim of this study was to perform a prospective analysis of the results of augmentation surgery using gracilis and semitendinosus tendons to treat partial sub-acute lesions of the ACL. This technique involves an “over the top” femoral passage, which enables salvage and strengthening of the intact portion of the ACL. The study included 47 patients treated consecutively at our institute from 1993 to 1998, with a mean injury-surgery interval of 18 weeks (range 12–36). The patients were followed up by clinical and instrumental assessment criteria at 3 months, 1 and 5 years after surgery. Clinical assessment was performed using the IKDC form. Subjective and functional parameters were assessed by the Tegner activity scale. Instrumental evaluation was done using the KT-2000 instrument: the 30-pound passive test and the manual maximum displacement test were performed. We obtained good or excellent results in 95.7% of cases. No recurrences in ligamentous laxity were observed. We believe that the described technique has the advantage of being compatible with ACL anatomy, and enables very rapid functional recovery.  相似文献   
96.
97.
目的探讨采用改良McBride与Greer手术(第1跖骨截骨术)治疗严重足母外翻的临床效果。方法采用改良McBride与Greer手术治疗严重足母外翻19例(32足)。术后根据足母外翻矫正情况进行评价。结果随访19例,时间为1.5个月~6年,所有患者术后外形明显改善,复发1足。结论采用改良McBride与Greer手术治疗严重足母外翻是一种安全、有效的治疗方法。  相似文献   
98.
辽宁满族和汉族指纹白线正常值分析   总被引:2,自引:0,他引:2  
本文报告了辽宁满族和汉族人指纹白线的调查结果。满族和汉族人的指纹白线出现率分别是7.14%和31.73%。满族人的指纹白线出现率低于汉族、维吾尔族、德国人、波兰人和美国白人。作者注意到满族人的指纹白线不存在左右手间和性别间的差异,而汉族人性别间差异显著。十指均有白线频率为1.91%(满族)和10.5%(汉族)。十指均有白线的白线平均数满族为39.3±6.6,汉族为35.5±10.6。五指中指纹白线出现率从高到低的顺序在满族为Ⅰ、Ⅳ、Ⅲ、Ⅱ、Ⅴ,在汉族为Ⅳ、Ⅲ、Ⅱ、Ⅰ、Ⅴ。存在民族间的差异。  相似文献   
99.
Summary Aspergillosis belongs to the group of mycotic diseases of paranasal sinuses. The invasive forms, and particularly the fulminant forms, are potentially fatal. Isolated aspergillosis of the sphenoid sinus or the clivus is a difficult diagnosis, since the often misleading clinical manifestations of this rare disease develop late. These patients become apparent by neurological signs such as cavernous sinus syndrome, pseudotumor of the pituitary or the orbit. Diagnosis is often made intra-operatively or on histological examination. We report a case of invasive aspergillosis uniquely involving the sellar area revealed by clinical features suggesting a pseudotumor of the pituitary. Although such lesions are almost always seen in immune suppressed subjects, in our case, the patient was immune competent and had no past history of sinusitis. The question of whether, and when to perform limited or extensive surgery remains an issue for discussion, owing to the rarity of this disease honed by lack of experience. It depends on several factors: the kind of disease, the immunity, the subtype of invasive fungal sinusitis and the degree of tissue invasion.  相似文献   
100.
积极开展客户管理 努力提高健康体检客户满意度   总被引:8,自引:0,他引:8  
健康体检有利润高、风险小的特征,具有非常好的市场前景。广州新海医院积极进行市场营销,开展客户管理,正确区分客户类型,建立客户资料数据库,合理确定客户组合,整合医院人力资源、业务流程及专业技术,对不同需求和消费层次的客户,采取不同的服务和管理策略,提供个性化、人性化的优质服务,主动搜集客户意见,认真处理客户投诉,不断改进医院健康体检工作方法,完善客户管理工作机制,使客户满意度不断提高,产生了良好的经营业绩,提高了医院的市场竞争力和品牌形象。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号