全文获取类型
收费全文 | 214738篇 |
免费 | 23124篇 |
国内免费 | 13693篇 |
专业分类
耳鼻咽喉 | 1881篇 |
儿科学 | 3253篇 |
妇产科学 | 2091篇 |
基础医学 | 16939篇 |
口腔科学 | 4352篇 |
临床医学 | 29647篇 |
内科学 | 24143篇 |
皮肤病学 | 2738篇 |
神经病学 | 6944篇 |
特种医学 | 8032篇 |
外国民族医学 | 44篇 |
外科学 | 17555篇 |
综合类 | 49629篇 |
现状与发展 | 52篇 |
一般理论 | 8篇 |
预防医学 | 23843篇 |
眼科学 | 4584篇 |
药学 | 23975篇 |
344篇 | |
中国医学 | 18665篇 |
肿瘤学 | 12836篇 |
出版年
2024年 | 1014篇 |
2023年 | 3415篇 |
2022年 | 7821篇 |
2021年 | 9844篇 |
2020年 | 8444篇 |
2019年 | 5558篇 |
2018年 | 6114篇 |
2017年 | 7144篇 |
2016年 | 5916篇 |
2015年 | 9911篇 |
2014年 | 12216篇 |
2013年 | 13770篇 |
2012年 | 18964篇 |
2011年 | 19940篇 |
2010年 | 16581篇 |
2009年 | 14388篇 |
2008年 | 14784篇 |
2007年 | 14255篇 |
2006年 | 12582篇 |
2005年 | 10596篇 |
2004年 | 7180篇 |
2003年 | 6313篇 |
2002年 | 5097篇 |
2001年 | 4293篇 |
2000年 | 3336篇 |
1999年 | 2244篇 |
1998年 | 1368篇 |
1997年 | 1407篇 |
1996年 | 1153篇 |
1995年 | 958篇 |
1994年 | 848篇 |
1993年 | 590篇 |
1992年 | 477篇 |
1991年 | 429篇 |
1990年 | 385篇 |
1989年 | 350篇 |
1988年 | 327篇 |
1987年 | 285篇 |
1986年 | 224篇 |
1985年 | 188篇 |
1984年 | 122篇 |
1983年 | 122篇 |
1982年 | 79篇 |
1981年 | 78篇 |
1980年 | 52篇 |
1979年 | 38篇 |
1978年 | 27篇 |
1977年 | 37篇 |
1976年 | 33篇 |
1954年 | 20篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
101.
Marek Motyka PhD Helena Motyka MA RN Romana Wsoek MA RN 《Journal of advanced nursing》1997,26(5):909-912
The paper presents the results of a pilot study which involved 50 nurses from several departments of internal medicine of The State Clinical Hospital of the Collegium Medicum, Jagiellonian University in Cracow. The results are based on the Statement Response Questionnaire. They show that the most common responses of the nurses in the face of anxiety expressed by patients are cheering up the patient, collecting information about the symptom, and offering explanation of the symptom. The least common responses included expressing one's own positive emotions and showing empathy towards the patient. 相似文献
102.
103.
104.
1992~1993年间为180例冠脉病变的病人施行冠脉搭桥术,全部病人均采用核甙抑制剂利多氟嗪预处理和低温(28℃)间断缺血心停搏进行术中心肌保护。平均每例病人作冠状动脉端吻合3~4个,每个吻合口用9分钟,主动脉阻断累加时间约25分钟,体外循环时间90分钟,术后医院死亡率1.6%(3/180),无术后心梗发生。作者认为,冠脉搭桥术的术中心肌保护可采用核甙抑制剂和间断缺血心停搏方法,而不用心肌停搏液。 相似文献
105.
106.
Twenty-one patients, under 6 years of age, with root avulsion of the brachial plexus were treated from 1975 to 1987. Among them, 9 had root avulsion of the upper trunk, 2 root avulsion of the lower trunk with middle trunk broken, and 10 root avulsion of the whole brachial plexus. Follow-up of 16 patients showed excellent results in 2 patients, good in 11, fair in 1 and poor in 2. It is suggested that good results can be obtained if multi-paired nerve transfer is adopted in treatment. We conclude that owing to anatomical and physiological characteristics of the respiratory system in children, it is harmful to perform phrenic nerve transfer concomitantly with intercostal nerve transfer. Advisably, two-stage operation is required, otherwise dyspnea and pneumonia are liable to occur. In addition, the time of the operation could be extended to 4-5 years after injury in children, but best results are obtained if the operation is performed within 1 year.
相似文献
107.
CM Reid M. Nelson P. Beckinsale P. Ryan LMH Wing LJ Beilin MA Brown GLR Jennings CI Johnston J. Marley JJ McNeil TO Morgan J. Shaw ID Steven MJ West 《Clinical and experimental pharmacology & physiology》1997,24(5):370-373
1. The present study aimed to determine the feasibility of conducting a 5 year cardiovascular outcome trial of the treatment of 6000 elderly hypertensive patients in Australian general practices. 2. General practitioners (GPs) were invited to participate by mail and personal follow-up. Patient records were reviewed to identify subjects for a blood pressure (BP) screening programme. Blood pressure was measured on three occasions and eligible subjects were included if the average BP was 160 mmHg systolic or 90 mmHg diastolic if systolic BP was 140 mmHg. 3. Seven hundred and forty-one GPs were approached and 89 were enrolled in the study (12% of mail invites and 75% of those receiving a personal contact). In 16 practices where screening was completed, 82 000 records were reviewed to identify 4% patients eligible for screening. Twenty-two per cent of eligible subjects attended screening. Of 1938 subjects screened, 180 (9%) had BP 5=160/90 mmHg. Forty-seven percent of subjects (n = 916) were receiving antihypertensive therapy and 184 (20%) were withdrawn from therapy. One hundred and sixteen (63%) of these subjects had BP return to study entry levels within 6 weeks. Fifty-seven newly diagnosed and 81 previously treated subjects were randomized (7% of the screened population). 4. Based on the high participation rate of GPs, the response rate of patients to attend a BP screening programme and the 7% randomization to screening ratio for entry into the study, the ANBP2 pilot study has demonstrated that it is feasible to recruit subjects from Australian general practices to a cardiovascular outcome trial. 相似文献
108.
目的 探索手指屈肌腱在近节指骨段不同范围损伤时对屈指肌腱功能的影响。方法 采用12只成人尸体手指。实验分为:第一阶段屈指肌腱完整,以后四个阶段依次沿近节指骨掌侧小线闭开小央1/4、1/2、3/4及全长。在掌指关节被动屈80°和掌指关节屈80°同时近侧指关节屈100°时,测量指浅屈肌腱(FDS)和指深屈肌腱(FDP)的滑动距离。根据肌腱力臂和滑动距离的关系,得出屈指肌腱在掌指关节处和近侧指间关节及肌腱在近节指骨段的弓弦畸形程度。结果 腱鞘中央1/4切开时,指屈肌腱的滑动距离、力臂均无显著变化;1/2切开后,单纯屈曲掌指关节时的FDS腱和掌指、近节指间关节屈曲时的FDS、HDP腱的滑动距离和力臂较腱鞘完整时显苫增大(P<0.05);切开3/4长度后,FDS、FDP腱滑动距离均有统计学意义变化,FDS、FDP腱力臂平均增加8~9%;全切开腱鞘,FDS、FDP腱滑动距离变化正统计学上有高度显著性(P<0.01),两腱力臂分别增加16%和15%。随腱鞘切开范围增大,FDS、FDP在近节指骨段的弓弦畸形程度也越来越大。结论 从肌腱的生物力学变化可见,近节指骨段腱鞘的小范围损伤如中间1/4以内损伤时,对肌腱功能影响小,可以不予修复;若损伤超过1/2长度,尤其对腱鞘全长损伤,应予以修复以恢复肌腱功能。 相似文献
109.
110.
Hartley Dean MA PhD Keir Gale BA Roger Woods BA MA 《Health & social care in the community》1996,4(6):338-346
The new complaints procedures which local authority social services departments have been required to introduce represent an important mechanism for managing the change of culture associated with recent community care reforms. They also represent a new genre in mechanisms of redress for welfare recipients. This paper reports the findings of a study which has observed considerable diversity in the ways in which local authorities are interpreting the nature and purposes of the new procedures and, in particular, the functions of review panels established under those procedures. Variations in the composition of panels, in the style of review panel proceedings, in perceptions of the panels' powers, and in the ways that complaints and complainants are constituted are all discussed. Attention is drawn to four competing interpretations of the review panels' role and to the need for these to be clarified and prioritised. 相似文献