全文获取类型
收费全文 | 35380篇 |
免费 | 3489篇 |
国内免费 | 133篇 |
专业分类
耳鼻咽喉 | 328篇 |
儿科学 | 1387篇 |
妇产科学 | 952篇 |
基础医学 | 4937篇 |
口腔科学 | 506篇 |
临床医学 | 5325篇 |
内科学 | 7263篇 |
皮肤病学 | 701篇 |
神经病学 | 3675篇 |
特种医学 | 749篇 |
外国民族医学 | 6篇 |
外科学 | 3189篇 |
综合类 | 352篇 |
一般理论 | 23篇 |
预防医学 | 4230篇 |
眼科学 | 467篇 |
药学 | 2172篇 |
中国医学 | 28篇 |
肿瘤学 | 2712篇 |
出版年
2024年 | 48篇 |
2023年 | 393篇 |
2022年 | 571篇 |
2021年 | 1110篇 |
2020年 | 872篇 |
2019年 | 1316篇 |
2018年 | 1409篇 |
2017年 | 1125篇 |
2016年 | 1147篇 |
2015年 | 1228篇 |
2014年 | 1515篇 |
2013年 | 2140篇 |
2012年 | 2775篇 |
2011年 | 2674篇 |
2010年 | 1639篇 |
2009年 | 1423篇 |
2008年 | 2233篇 |
2007年 | 2269篇 |
2006年 | 2077篇 |
2005年 | 1908篇 |
2004年 | 1811篇 |
2003年 | 1632篇 |
2002年 | 1523篇 |
2001年 | 308篇 |
2000年 | 244篇 |
1999年 | 276篇 |
1998年 | 343篇 |
1997年 | 263篇 |
1996年 | 218篇 |
1995年 | 209篇 |
1994年 | 187篇 |
1993年 | 145篇 |
1992年 | 119篇 |
1991年 | 131篇 |
1990年 | 112篇 |
1989年 | 110篇 |
1988年 | 90篇 |
1987年 | 75篇 |
1986年 | 84篇 |
1985年 | 73篇 |
1984年 | 87篇 |
1983年 | 79篇 |
1982年 | 94篇 |
1981年 | 91篇 |
1980年 | 70篇 |
1978年 | 47篇 |
1977年 | 55篇 |
1976年 | 71篇 |
1975年 | 48篇 |
1974年 | 47篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
Eileen Trafimow Ph.D. Marie Weissbourd Ph.D. Judith Wilen Ph.D. 《Journal of Child and Adolescent Group Therapy》1992,2(3):141-148
Traditionally, psychotherapy groups for children included only relatively intact youngsters. This paper describes a group consisting of four (near) psychotic children and two co-therapists which met for over three years. The developmental changes which occurred in the group over the course of time will be identified and discussed using a neo-psychoanalytic, object relations framework. 相似文献
102.
Augusto Giussani Adeseye M Arogunjo Marie Claire Cantone Federico Tavola Ivan Veronese 《Applied radiation and isotopes》2006,64(6):639-644
The intestinal absorption of molybdenum in healthy human volunteers has been measured by simultaneous oral and intravenous administration of the stable isotopes 95Mo and 96Mo, and the results were analysed using the convolution integral technique. The results showed that molybdenum ingested in liquid form was rapidly and totally absorbed into the circulation under ordinary intake regimes. The rates and extent of absorption were lower for composite meals, and also for increasing levels of administration. This information can be helpful in the application of the new ICRP model of the human alimentary tract. 相似文献
103.
104.
Staffan Eksborg Lennart Hardell Nils-Olof Bengtsson Marie Sjödin Birgitta Elfsson 《Medical oncology (Northwood, London, England)》1992,9(2):75-80
Sixty women with breast cancer (mean age: 61 years; range 36-78 years) were treated with Epirubicin (4’epi-Dox-orubicin),
60 mg m-2 , as single drug therapy. The drug was administered as 2 hours’ constant rate infusions. The pharmacokinetics of the drug
during the first course of treatment was evaluated by measurements of the plasma concentration of Epirubicin at the end of
the infusion period.
There was a five-fold inter-individual variation of the dose-normalized maximum plasma concentration, which increased with
increasing age of the patients. There was no correlation between this pharmacokinetic parameter and degree of obesity. 相似文献
105.
Endothelin-1 in children with chronic renal failure 总被引:1,自引:0,他引:1
Isabelle Blazy Michèle Déchaux Marina Charbit Danièle Brocart Jean-Claude Souberbielle Marie France Gagnadoux François Guillot Charles Sachs 《Pediatric nephrology (Berlin, Germany)》1994,8(1):40-44
Endothelin-1 (ET-1) was meansured after extraction from plasma of normal adults (5.9±1.9 pg/ml,n=22), normal children (7.1±1.86 pg/ml,n=29), nonhaemodialysed children with chronic renal failure (CRF) (11.1±1.8 pg/ml),n=10), renal graft recipients (9.5±3.4 pg/ml,n=37), haemodialysed children 24 h after a haemodialysis session (20.02±10.9 pg/ml,n=26) and haemodialysed children before and after a haemodialysis session (15.31±10.6 and 13.8±8.5 respectively,n=14). A sensitive and specific radioimmunoassay was used. ET-1 was significantly higher in non-haemodialysed CRF children and in renal graft recipients than in normal children (P<0.001 andP<0.01, respectively) and significantly higher in haemodialysed children when compared with normal children, non-haemodialysed CRF children and renal graft recipients (P<0.001). ET-1 concentrations were similar in normal children and normal adults. ET-1 was inversely correlated with glomerular filtration rate in non-haemodialysed CRF children (r=–0.39,P<0.01) and positively correlated with extracellular volume in haemodialysed children (r=0.435,P<0.03). After haemodialysis, ET-1 increased in 6 and decreased in 8 of the 14 children studied before and after a haemodialysis session. 相似文献
106.
A device called the Dex Frame has recently been marketed as an aid for children with specific learning difficulties. Using a test of reading speed and a test of reading accuracy we have attempted to evaluate the device. Two groups of children with learning difficulties were used, one having sole use of the device and being allowed to carry it with them and a second group who only used the device when attending for remedial tuition and assessment. The results show that no significant improvement occurred in reading performance of the groups with learning difficulties using the Dex Frame as compared with a control group. The teachers of the groups did, however, feel that on an individual basis some children (< 10%) expressed that they felt more comfortable using the device. 相似文献
107.
108.
Louise Hall Simon Hewson 《Journal of Applied Research in Intellectual Disabilities》2006,19(2):204-207
Background In 1995, an unpublished study (S. Hewson & C. Waters) showed that the community links of residents in 11 local National Health Services (NHS) trust houses were meagre, despite the service's stated commitment to community presence and participation. The 1995 study was repeated for the same 11 houses in 2002 to examine whether any changes had occurred. Method A test–retest design, with repeated measures was used, involving, as closely as possible, the same participants at two time points. Community links referred to the time residents spent outside their house, and the time unpaid visitors spent inside the house in the presence of the residents. Results The community links of the people studied were no better in 2002 than in 1995. Conclusions These findings question whether current service provision can deliver policy objectives for social inclusion for people with intellectual disabilities. 相似文献
109.
Pelvic floor muscle training with biofeedback and bladder training in elderly women: a feasibility study. 总被引:1,自引:0,他引:1
Louise Perrin Sharon Wood Dauphinée Jacques Corcos James A Hanley George A Kuchel 《Journal of wound, ostomy, and continence nursing》2005,32(3):186-199
OBJECTIVE: It is generally assumed that interventions used to treat urinary incontinence (UI) in young women could simply be applied to older competent and motivated women, but these assumptions have not been formally tested. The purpose of this study was to determine the feasibility of using physical therapies to treat UI in older women. DESIGN: Twelve-week time series. SETTINGS AND SUBJECTS: We recruited women older than 75 years with UI from an outpatient urology clinic and a waiting list for incontinence surgery. METHODS: After a baseline evaluation, the women collected data on their incontinence symptoms and bladder habits for 3 weeks using the 72-hour voiding diary and the 24-hour pad test. They then received 6 physical therapy treatments consisting of a combination of bladder training and pelvic floor muscle training assisted with biofeedback for 6 weeks. This was followed by another 3-week period of data collection and a final evaluation. RESULTS: Ten women participated in the study; 7 completed it. They were all comfortable with the treatment. They complied with the study demands in terms of attendance at treatment session (100%), data collection (96%), and completion of exercises at home (82%). The authors observed a decrease in the number of incontinent and urgency episodes. CONCLUSION: This preliminary study demonstrates that some women older than 75 years are good candidates to undertake physical therapies for UI and follow study demands. Random controlled studies that include this population will provide evidence regarding the effectiveness of these therapies. 相似文献
110.