全文获取类型
收费全文 | 2355篇 |
免费 | 105篇 |
国内免费 | 10篇 |
专业分类
耳鼻咽喉 | 17篇 |
儿科学 | 113篇 |
妇产科学 | 32篇 |
基础医学 | 233篇 |
口腔科学 | 68篇 |
临床医学 | 185篇 |
内科学 | 519篇 |
皮肤病学 | 45篇 |
神经病学 | 111篇 |
特种医学 | 194篇 |
外科学 | 287篇 |
综合类 | 91篇 |
预防医学 | 93篇 |
眼科学 | 70篇 |
药学 | 249篇 |
中国医学 | 23篇 |
肿瘤学 | 140篇 |
出版年
2023年 | 7篇 |
2022年 | 18篇 |
2021年 | 42篇 |
2020年 | 34篇 |
2019年 | 46篇 |
2018年 | 48篇 |
2017年 | 27篇 |
2016年 | 47篇 |
2015年 | 51篇 |
2014年 | 109篇 |
2013年 | 101篇 |
2012年 | 173篇 |
2011年 | 163篇 |
2010年 | 131篇 |
2009年 | 111篇 |
2008年 | 136篇 |
2007年 | 146篇 |
2006年 | 115篇 |
2005年 | 123篇 |
2004年 | 109篇 |
2003年 | 94篇 |
2002年 | 78篇 |
2001年 | 15篇 |
2000年 | 16篇 |
1999年 | 17篇 |
1998年 | 46篇 |
1997年 | 47篇 |
1996年 | 56篇 |
1995年 | 41篇 |
1994年 | 25篇 |
1993年 | 48篇 |
1992年 | 8篇 |
1991年 | 7篇 |
1990年 | 12篇 |
1989年 | 13篇 |
1988年 | 13篇 |
1987年 | 27篇 |
1986年 | 29篇 |
1985年 | 14篇 |
1984年 | 18篇 |
1983年 | 9篇 |
1982年 | 22篇 |
1981年 | 14篇 |
1980年 | 14篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1977年 | 13篇 |
1976年 | 9篇 |
1975年 | 10篇 |
1964年 | 2篇 |
排序方式: 共有2470条查询结果,搜索用时 15 毫秒
1.
D Gröne† R Treudler† EM de Villiers‡ R Husak† CE Orfanos† ChC Zouboulis†§ 《Journal of the European Academy of Dermatology and Venereology》2006,20(2):202-205
Cidofovir is an acyclic nucleoside phosphonate with broad-spectrum activity against DNA viruses, including human papilloma virus (HPV). However, data on the efficacy of cidofovir in an immunosuppressive setting remain contradictory. We report for the first time on the promotion of the healing of recalcitrant warts in a patient with myelodysplastic syndrome with intravenous cidofovir treatment. 相似文献
2.
Pankaj Hari Anand Srivastava Arun Kumar Gupta Rajendra N. Srivastava 《Pediatric nephrology (Berlin, Germany)》1997,11(4):497-498
Acute renal failure (ARF) developed in a 7-week-old infant due to bilateral candidal bezoars (fungal balls) causing obstruction
at the pelviureteric junction. The baby was born at term with an appropriate birthweight, and had been treated with broad-spectrum
antibiotics for respiratory distress and septicemia during the 1st week of life. Recovery from ARF followed renal decompression
with bilateral nephrostomy tube placement and parenteral administration of amphotericin B and 5-flucytosine.
Received August 21, 1996; received in revised form and accepted January 3, 1997 相似文献
3.
The Broad Spectrum of Quality in Deceased Donor Kidneys 总被引:7,自引:6,他引:1
Jesse D. Schold Bruce Kaplan Rajendra S. Baliga Herwig-Ulf Meier-Kriesche 《American journal of transplantation》2005,5(4):757-765
The quality of the deceased donor organ clearly is one of the most crucial factors in determining graft survival and function in recipients of a kidney transplant. There has been considerable effort made towards evaluating these organs culminating in an amendment to allocation policy with the introduction of the expanded criteria donor (ECD) policy.
Our study, from first solitary adult deceased donor transplant recipients from 1996 to 2002 in the National Scientific Transplant Registry database, presents a donor kidney risk grade based on significant donor characteristics, donor–recipient matches and cold ischemia time, generated directly from their risk for graft loss. We investigated the impact of our donor risk grade in a naïve cohort on short- and long-term graft survival, as well as in subgroups of the population.
The projected half-lives for overall graft survival in recipients by donor risk grade were I (10.7 years), II (10.0 years), III (7.9 years), IV (5.7 years) and V (4.5 years). This study indicates that there is great variability in the quality of deceased donor kidneys and that the assessment of risk might be enhanced by this scoring system as compared to the simple two-tiered system of the current ECD classification. 相似文献
Our study, from first solitary adult deceased donor transplant recipients from 1996 to 2002 in the National Scientific Transplant Registry database, presents a donor kidney risk grade based on significant donor characteristics, donor–recipient matches and cold ischemia time, generated directly from their risk for graft loss. We investigated the impact of our donor risk grade in a naïve cohort on short- and long-term graft survival, as well as in subgroups of the population.
The projected half-lives for overall graft survival in recipients by donor risk grade were I (10.7 years), II (10.0 years), III (7.9 years), IV (5.7 years) and V (4.5 years). This study indicates that there is great variability in the quality of deceased donor kidneys and that the assessment of risk might be enhanced by this scoring system as compared to the simple two-tiered system of the current ECD classification. 相似文献
4.
5.
6.
7.
Digital radiography of subtle pulmonary abnormalities: an ROC study of the effect of pixel size on observer performance 总被引:3,自引:0,他引:3
Forty conventional radiographs with examples of mild interstitial infiltrates and subtle pneumothoraces and 40 normal studies of the chest were selected and digitized, with pixel sizes of 1.0, 0.5, 0.2, and 0.1 mm. Observer performance tests were carried out using receiver operating characteristic analysis. Conventional radiographs and digitized images were compared. The results indicate that, in such cases, diagnostic accuracy increases significantly as the pixel size is reduced, at least to the 0.1-mm level. We conclude that, for digital systems using screen-film or similar image receptors, use of a pixel size substantially larger than 0.1 mm may result in some loss of diagnostic accuracy. 相似文献
8.
9.
Rajendra Nigam MD Richard Schottenfeld MD Thomas R. Kosten MD 《Journal of substance abuse treatment》1992,9(4):305-309
The authors describe the successful use of an adjunctive group psychotherapy for substance-abusing patients with major psychiatric disorders (bipolar, schizophrenia, schizoaffective, psychotic depression, and atypical psychosis). The group utilizes a psychoeducational approach that focuses on substance abuse causes and consequences, principles of recovery, and relapse prevention strategies. Eight patients with prolonged histories of abuse of cocaine, alcohol, marijuana, or other drugs were enrolled in this weekly group treatment at a community mental health center drug treatment program, while continuing in treatment with their current case manager or primary therapist. Six of the eight patients achieved periods of stable abstinence, documented by self-report, urine toxicology screens, continued group attendance, and improved social functioning. Case examples are utilized to illustrate the group process. 相似文献
10.
Dr. Smita K. Nagle Rajendra S. Kelkar 《Indian journal of otolaryngology and head and neck surgery》2007,59(1):41-42
Spirometry can be used as an objective tool for measuring nasal patency. it is sensitive, easy to perform, comfortable to patient The only limitation being that it only can be done in institution. 相似文献