全文获取类型
收费全文 | 3198篇 |
免费 | 329篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 45篇 |
儿科学 | 98篇 |
妇产科学 | 84篇 |
基础医学 | 466篇 |
口腔科学 | 122篇 |
临床医学 | 333篇 |
内科学 | 520篇 |
皮肤病学 | 41篇 |
神经病学 | 288篇 |
特种医学 | 147篇 |
外科学 | 486篇 |
综合类 | 196篇 |
一般理论 | 2篇 |
预防医学 | 328篇 |
眼科学 | 40篇 |
药学 | 183篇 |
肿瘤学 | 153篇 |
出版年
2022年 | 28篇 |
2021年 | 76篇 |
2020年 | 35篇 |
2019年 | 72篇 |
2018年 | 56篇 |
2017年 | 49篇 |
2016年 | 47篇 |
2015年 | 65篇 |
2014年 | 67篇 |
2013年 | 103篇 |
2012年 | 141篇 |
2011年 | 140篇 |
2010年 | 86篇 |
2009年 | 76篇 |
2008年 | 117篇 |
2007年 | 134篇 |
2006年 | 151篇 |
2005年 | 107篇 |
2004年 | 112篇 |
2003年 | 87篇 |
2002年 | 96篇 |
2001年 | 71篇 |
2000年 | 80篇 |
1999年 | 68篇 |
1998年 | 65篇 |
1997年 | 60篇 |
1996年 | 49篇 |
1995年 | 35篇 |
1994年 | 55篇 |
1993年 | 36篇 |
1992年 | 60篇 |
1991年 | 42篇 |
1990年 | 52篇 |
1989年 | 58篇 |
1988年 | 58篇 |
1987年 | 73篇 |
1986年 | 60篇 |
1985年 | 68篇 |
1984年 | 57篇 |
1983年 | 46篇 |
1982年 | 29篇 |
1981年 | 37篇 |
1980年 | 30篇 |
1979年 | 36篇 |
1978年 | 28篇 |
1977年 | 30篇 |
1976年 | 28篇 |
1974年 | 27篇 |
1972年 | 30篇 |
1968年 | 26篇 |
排序方式: 共有3532条查询结果,搜索用时 0 毫秒
1.
Hannah Lilly Mackenzie Bitzel Tatiana Pejnovic Joanna Schnell 《Physical Therapy Reviews》2019,24(5):195-207
AbstractBackground: Cerebral palsy (CP) is a common childhood disability. However, these individuals are now living longer lives, participating in adult roles, and seeking healthcare services. The transition from pediatric to adult healthcare for adolescents with CP is a challenging yet significant time. Adolescents experience several barriers during transition.Objectives: To utilize the environmental and personal dimensions of the ICF model in order to explore barriers when transitioning to adulthood as well as discuss characteristics and physical therapy implications needed to succeed within transition.Methods: Electronic searching of PubMed, CINAHL, ERIC, Scopus, ProQuest, and the Cochrane Library databases was concluded on January 9, 2019 for studies including transition between pediatric and adult healthcare in individuals diagnosed with CP. Two independent reviewers agreed upon inclusion, eligibility, and quality assessment of each study using the Mixed-Methods Appraisal Tool (MMAT).Results: Seven studies were included in the systematic review. Results for each study were separated based on the personal and environmental contextual factors of the ICF model and solutions to the barriers were then discussed.Conclusions: Research has provided proposed solutions to select barriers, however, other barriers have yet to be addressed. More research is needed to address these barriers and provide a model program that can be implemented within the healthcare systems to promote a successful transition for adolescents with CP from pediatric to adult services. 相似文献
2.
Lithium treatment of chronic hair pulling 总被引:3,自引:0,他引:3
G A Christenson M K Popkin T B Mackenzie G M Realmuto 《The Journal of clinical psychiatry》1991,52(3):116-120
Ten patients with chronic hair pulling received trials of lithium carbonate of 2 to 14 months' duration. Eight patients demonstrated decreased hair pulling and mild to marked hair regrowth. Three responders experienced increased hair pulling subsequent to discontinuation of lithium treatment. Lithium's effect on hair pulling may be related to its observed benefits in treating aggressivity, impulsivity, and mood instability. 相似文献
3.
4.
5.
A D al-Haidary I G Mackay K D Bhoola N D Millar M L Watson J C Mackenzie 《Nephrology, dialysis, transplantation》1990,5(7):535-541
Eighteen renal transplant recipients and sixteen volunteers were subjected to the physiological manoeuvre of head-out water immersion, in order to compare changes in electrolyte and humoral responses known to occur in healthy individuals with those arising as a result of renal denervation in the transplant recipients. Although the tubular sodium response to water immersion was normal, tubular potassium excretion was markedly different in the transplant patients. Plasma values of atrial natriuretic factor increased in both groups and showed a close temporal relationship to urinary excretion of cyclic GMP. The attenuation in transplant recipients of the well-documented suppression of plasma renin activity during water immersion was probably due to a combination of factors, namely lack of renal innervation and an increase in circulating ANF. The small but significant increase in the excretion of enzymically active urinary kallikrein observed only in the transplant recipients during immersion still requires explanation. 相似文献
6.
7.
8.
9.
HERMAN TOURNAYE RONNY JANSSENS PAUL DEVROEY RK VAN STEIRTEGHEM 《International journal of andrology》1994,17(1):1-8
In order to evaluate the effects of pentoxifylline on sperm motility and longevity, a controlled in-vitro study was conducted on normozoospermic donor semen samples using the Cellsoft automated system for sperm motility analysis. After incubation and selection, pentoxifylline was found to improve the recovery of spermatozoa and to increase their velocity. In the subgroup of progressively motile spermatozoa, curvilinear velocity was also enhanced. It is concluded that pentoxifylline has an effect on the vigour, but not on the pattern, of sperm motion. Pentoxifylline did not improve the motility characteristics of senescent spermatozoa in normozoospermic sperm samples. Sperm survival, as shown by supra-vital staining, and motility longevity both decreased with time after pentoxifylline treatment. 相似文献
10.
The authors describe the management by percutaneous drainage of a rare solitary tuberculous liver abscess in a 37-year-old woman. Open surgical drainage of such abscesses can be avoided using percutaneous drainage combined with transcatheter infusions of antituberculous agents. For the safe and successful use of this method three criteria must be met: the abscess should be unilocular, there must be a safe access route and a previously sterile compartment must not be contaminated. In addition a small (22 or 23 gauge) needle should be used for the initial puncture. 相似文献