收费全文 | 2290篇 |
免费 | 188篇 |
国内免费 | 5篇 |
耳鼻咽喉 | 16篇 |
儿科学 | 67篇 |
妇产科学 | 46篇 |
基础医学 | 331篇 |
口腔科学 | 40篇 |
临床医学 | 369篇 |
内科学 | 457篇 |
皮肤病学 | 20篇 |
神经病学 | 202篇 |
特种医学 | 54篇 |
外科学 | 249篇 |
综合类 | 26篇 |
一般理论 | 1篇 |
预防医学 | 301篇 |
眼科学 | 27篇 |
药学 | 102篇 |
中国医学 | 4篇 |
肿瘤学 | 171篇 |
2024年 | 10篇 |
2023年 | 50篇 |
2022年 | 30篇 |
2021年 | 85篇 |
2020年 | 58篇 |
2019年 | 97篇 |
2018年 | 99篇 |
2017年 | 62篇 |
2016年 | 62篇 |
2015年 | 79篇 |
2014年 | 94篇 |
2013年 | 104篇 |
2012年 | 203篇 |
2011年 | 190篇 |
2010年 | 89篇 |
2009年 | 62篇 |
2008年 | 131篇 |
2007年 | 133篇 |
2006年 | 123篇 |
2005年 | 148篇 |
2004年 | 136篇 |
2003年 | 111篇 |
2002年 | 100篇 |
2001年 | 16篇 |
2000年 | 17篇 |
1999年 | 22篇 |
1998年 | 20篇 |
1997年 | 12篇 |
1996年 | 16篇 |
1995年 | 18篇 |
1994年 | 13篇 |
1993年 | 12篇 |
1992年 | 7篇 |
1991年 | 12篇 |
1990年 | 16篇 |
1989年 | 12篇 |
1988年 | 13篇 |
1987年 | 3篇 |
1985年 | 2篇 |
1984年 | 4篇 |
1982年 | 1篇 |
1980年 | 3篇 |
1979年 | 1篇 |
1976年 | 1篇 |
1973年 | 1篇 |
1972年 | 1篇 |
1965年 | 4篇 |
Background
Beliefs about medication have been associated with adherence in other diseases but there are no existing disease-specific medication beliefs questionnaires for CF. This mixed-methods validated the Cystic Fibrosis Medication Belief Questionnaire (CF-MBQ), based on social cognitive theory.Methods
Based on previous research, items were developed for five domains: motivation, self-efficacy, perceived importance, and decisional balance to take or miss medications. Cognitive interviews were conducted with 15 adult patients with CF to refine item development. 128 patients with CF completed an online survey and objective medication adherence was measured using pharmacy refill data.Results
The five subscales demonstrated strong psychometric properties, with adequate-to-good internal consistency scores. More importantly, each domain demonstrated construct validity with adherence.Conclusions
These theoretically-derived measures may be important for clinical purposes to provide guidance on appropriate interventions to improve adherence and for research to provide enhanced understanding on patient determinants of medication adherence. 相似文献Objective
Negative pressure therapy (VAC, vacuum assisted closure) is a method used still in our country. It consists of a system of aspirating a wound by means of a piece of foam and a few adhesive films. It allows the treatment of complex wounds, included (although this is still controversial) those with intestinal fistulas. We present 3 cases of treatment with VAC in this situation and a review of the published literature.Patients and method
We have treated 10 patients, since VAC therapy was introduced into our centre of which 3 of whom had a fistula in the bed of the surgical wound. We describe the clinical information of the patients and the therapy that followed in each of the cases.Results
Significant local clinical improvement of the disease, with control of the symptoms, was achieved in all 3 cases. We were able to re-operate to close the fistula in one of the patients, with subsequent good progression of the wound. In the other two cases it gave them a better quality of life although both died due to the overall complexity of their situation.Conclusions
VAC therapy, although controversial in the treatment of intestinal fistulas, can help to improve the local situation of the wounds, the comfort of the patients and their general situation. 相似文献Introduction
Traumatic brain injury (TBI) is the single largest cause of death and disability following injury worldwide. While TBI in older adults is less common, it still contributes to significant morbidity and mortality in this group. Understanding the patient characteristics that result in good and poor outcome after TBI is important in the clinical management and prognosis of older adult TBI patients. This population-based study investigated predictors of mortality and longer term functional outcomes following serious TBI in older adults.Methods
All older adults (aged > 64 years), isolated moderate to severe TBI cases from the population-based Victorian State Trauma Registry for the period July 2005 to June 2007 (inclusive) were extracted for analysis. Demographic, injury event, injury diagnosis, management and comorbid status information were obtained and the outcomes of interest were in-hospital mortality, and the Glasgow Outcome Scale-Extended (GOS-E) score at 6 months post-injury. Multivariate logistic regression analyses were used to identify independent predictors of in-hospital mortality and independent living (GOS-E > 4) status at 6 months.Results
Of the 428 isolated, older adult TBI cases, the majority were the result of a fall (88%), male (55%), and aged > 74 years (76%). The in-hospital death rate was 28% and increasing age (p = 0.009), decreasing GCS (p < 0.001) and injury type (p = 0.002) were significant independent predictors of in-hospital mortality. Of the 310 patients who survived to discharge, 65% were successfully followed-up 6 months following injury. There was no difference between patients lost to follow-up and those successfully followed-up with respect to the key population indicators of age, gender, or head injury severity. Younger (<75 years) patients, and those with an SBP on arrival at hospital of 131-150 mmHg, were at increased odds of living independently at follow-up. No patients with a GCS < 9 had a good 6-month outcome, and most of them died. The survival rate for brainstem injury was also low (21%).Conclusion
In this population-based study, we found that age, GCS, brainstem injury, and systolic blood pressure were the most important factors in predicting outcome in older adults with an isolated moderate to severe TBI. 相似文献Methods Patients were randomized to receive cisplatin 75 mg/m^2 on day 1 plus either gemcitabine 1250 mg/m^2 on days 1 and 8 of a 21-day cycle (3-week group) or gemcitabine 1000 mg/m2 on days 1,8 and 15 of a 28-day cycle (4-week group).
Results One hundred patients were enrolled in this study. The response rate was 24% (12/51 patients) in the 3-week group and 27% (13/49 patients) in the 4-week group. There were no statistically significant differences between the two treatment groups in survival (hazard ratio: 1.19; 95% CI: 0.68-2.09) with a median survival of 12.1 months and 13.8 months in the 3-week group and the 4-week group respectively. The rate of grade 3/4 toxicity in the 3-week group was 55% compared with 86% in the 4-week group (P=0.001). The difference in the incidence of grade 3/4 haematological toxicities did not reach statistical significance (3-week: 37%, 4-week: 57%), however grade 3/4 drug related neutropenia (3-week: 27%, 4-week: 51%) and thrombocytopenia (3-week: 8%, 4-week: 31%) were significantly lower in the 3-week group. Grade 3/4 nonhaematological toxicities were less in the 3-week group (33% cf 63%; P=0.005).
Conclusions The differences in the efficacy endpoints were all in favour of the 4-week schedule of gemcitabine plus cisplatin, however these differences did not reach statistical significance. Fewer grade 3/4 toxicities were observed in the 3-week group compared with the 4-week group. 相似文献
Method: This narrative review examines a range of legislation, legal, ethical and SLP literature that is currently available to orient SLPs to legal and ethical palliative dysphagia management in the Australian context.
Result: Relevant legal and ethical considerations in palliative and end-of-life care are described.
Conclusion: SLPs have a role in palliative dysphagia management, however, this can involve unique legal and ethical challenges. The legal position on provision and cessation of nutrition and hydration differs between Australian States and Territories. Decisions by the courts have established a body of relevant case law. This article introduces SLPs to some of the important considerations for legal and ethical palliative care, but is not intended to be directive. SLPs are encouraged to explore their local options for ethical and medico-legal guidance. It is hoped that increasing SLPs awareness of many of the concepts discussed in this article enhances the provision of high-quality patient-centred care. 相似文献