全文获取类型
收费全文 | 579篇 |
免费 | 47篇 |
国内免费 | 2篇 |
专业分类
儿科学 | 17篇 |
妇产科学 | 12篇 |
基础医学 | 79篇 |
口腔科学 | 6篇 |
临床医学 | 80篇 |
内科学 | 124篇 |
神经病学 | 51篇 |
特种医学 | 40篇 |
外科学 | 82篇 |
综合类 | 13篇 |
预防医学 | 53篇 |
眼科学 | 3篇 |
药学 | 55篇 |
肿瘤学 | 13篇 |
出版年
2023年 | 4篇 |
2022年 | 7篇 |
2021年 | 15篇 |
2020年 | 8篇 |
2019年 | 10篇 |
2018年 | 10篇 |
2017年 | 9篇 |
2016年 | 14篇 |
2015年 | 17篇 |
2014年 | 23篇 |
2013年 | 16篇 |
2012年 | 40篇 |
2011年 | 35篇 |
2010年 | 22篇 |
2009年 | 17篇 |
2008年 | 23篇 |
2007年 | 34篇 |
2006年 | 28篇 |
2005年 | 34篇 |
2004年 | 15篇 |
2003年 | 21篇 |
2002年 | 17篇 |
2001年 | 20篇 |
2000年 | 26篇 |
1999年 | 15篇 |
1998年 | 4篇 |
1997年 | 5篇 |
1996年 | 5篇 |
1995年 | 5篇 |
1994年 | 4篇 |
1993年 | 8篇 |
1992年 | 18篇 |
1991年 | 14篇 |
1990年 | 9篇 |
1989年 | 9篇 |
1988年 | 6篇 |
1987年 | 3篇 |
1986年 | 6篇 |
1985年 | 10篇 |
1984年 | 7篇 |
1983年 | 5篇 |
1981年 | 3篇 |
1980年 | 3篇 |
1979年 | 5篇 |
1977年 | 2篇 |
1976年 | 3篇 |
1973年 | 3篇 |
1972年 | 3篇 |
1970年 | 2篇 |
1964年 | 2篇 |
排序方式: 共有628条查询结果,搜索用时 15 毫秒
621.
Health education for socially marginalized populations challenges the efficacy of existing strategies and methods, and the pertinence of the educational and philosophical principles that underpin them. The Brazilian Community Health Agents Initiative (CHAI) hires residents of deprived marginalized communities to undertake health promotion and education in their communities. The ultimate goal of the CHAI is to connect populations with the public healthcare system by promoting social re-affiliation, protecting civil rights and enhancing equity of access to health services. In this article, we present the education work of community health agents through interplay between popular and scientific health knowledge in nine Rio de Janeiro shantytowns. A critical ethnographic research design, using thematic analysis, allowed us to explore agents' education work to enhance family health literacy in shantytowns. Local culture and social practices inspire Agents to create original strategies to reconcile forms of health knowledge in their work. 相似文献
622.
623.
Angela Potes Genevieve Gagnon El Hadj Touré Michel Perreault 《The Psychiatric quarterly》2016,87(4):649-662
Important attention has been given to the assessment of patients’ perspectives on treatment, especially as outcomes have been typically evaluated by clinicians. This study examined the association between patient and clinician ratings on perceived improvement and symptomatology changes for an older adult population participating in an ongoing psycho-educational program. Pre-post measures including depression (GDS), anxiety (BAI) and general well-being (GWBS) were collected in a sample of 34 older adults (age = 71.32 ± 6.46 years). Post-testing data included perceived improvement rated by patients, and clinician assessment of depressive symptoms (CS-GDS). Results indicate significant correlations between pre-post changes of the GDS and patients’ PIQ (r = ?0.37, n = 31, p < 0.05), but not on symptomatic changes of the BAI (r = 0.012, n = 32, p > 0.05) or the GWBS (r = 0.12, n = 31, p > 0.05). Relationships between patients’ PIQ and post-ratings on GDS (r = -0.74, n = 33, p < 0.05) and CS-GDS (r = -0.48, n = 32, p < 0.05) are also significant. Results imply that pre-post improvement in depressive symptoms is associated with a patient’s perceived improvement and that clinician and patient ratings on depression symptoms post-treatment were both inversely correlated to patients’ perceived improvement. Findings suggest that the PIQ is a good indicator to assess symptomatic change by patients and clinicians although they are possibly placing attention on different aspects of treatment outcome, as indicated by differences on sub-scales of the PIQ. Clinicians possibly place a strong focus on assessments of depression symptomatology. Future studies may integrate simultaneous assessments of instruments exploring aspects other than depression, especially those examining representations of illness in older adults. 相似文献
624.
625.
Radmila Sparić Antonio Malvasi Saša Kadija Aleksandar Stefanović Svetlana Spremović Radjenović Jela Popović 《The journal of maternal-fetal & neonatal medicine》2018,31(15):1972-1975
Objective: Cesarean myomectomy (CM) is a safe procedure in selected cases. Nevertheless, literature lacks clear guidelines on patient selection. We aimed to evaluate CM safety in patients with single anterior wall and lower uterine segment (LUS) myomas.Methods: The authors selected pregnants at term, scheduled for CSs, with single anterior wall or LUS myomas. All their clinical, demographic, obstetric, and surgical parameters were recorded.Results: Thirty-six women had a CM (study group), and 17 had a CS without myoma removal (control group). No significant differences were detected in the socio-demographic and clinical findings between the groups. The average size of myomas in the study and control group (p?=?.873), was 55.44?mm and 47.25?mm, respectively. The average surgery duration was 62.5?min in the study and 53.82 in the control group (p?=?.058). Intraoperative hemorrhage was more frequent in the study group (p?=?.045). Nevertheless, neither the number nor the volume of intraoperative transfusions was significantly different. None of the major CM complications were recorded, and the duration of hospitalization was similar in both groups.Conclusions: CM in patients with single anterior wall and LUS myomas does not cause increased perioperative morbidity, and, therefore, can be considered safe in such cases. 相似文献
626.
Abdalla M. Albeely Caitlin J. Nolan Duncan J. Rasmussen Craig D. C. Bailey Melissa L. Perreault 《CNS Neuroscience & Therapeutics》2023,29(9):2469-2480
Introduction
The dopamine D5 receptor (D5R) shows high expression in cortical regions, yet the role of the receptor in learning and memory remains poorly understood. This study evaluated the impact of prefrontal cortical (PFC) D5R knockdown in rats on learning and memory and assessed the role of the D5R in the regulation of neuronal oscillatory activity and glycogen synthase kinase-3 (GSK-3β), processes integral to cognitive function.Materials and Methods
Using an adeno-associated viral (AAV) vector, male rats were infused with shRNA to the D5R bilaterally into the PFC. Local field potential recordings were taken from freely moving animals and spectral power and coherence were evaluated in, and between, the PFC, orbitofrontal cortex (OFC), hippocampus (HIP), and thalamus. Animals were then assessed in object recognition, object location, and object in place tasks. The activity of PFC GSK-3β, a downstream effector of the D5R, was evaluated.Results
AAV-mediated knockdown of the D5R in the PFC induced learning and memory deficits. These changes were accompanied by elevations in PFC, OFC, and HIP theta spectral power and PFC-OFC coherence, reduced PFC-thalamus gamma coherence, and increased PFC GSK-3β activity.Conclusion
This work demonstrates a role for PFC D5Rs in the regulation of neuronal oscillatory activity and learning and memory. As elevated GSK-3β activity has been implicated in numerous disorders of cognitive dysfunction, this work also highlights the potential of the D5R as a novel therapeutic target via suppression of GSK-3β. 相似文献627.
Tetsuya Kouno Suling Zeng Yanhan Wang Yi Duan Sonja Lang Bei Gao Phillipp Hartmann Noemí Cabré Cristina Llorente Chloé Galbert Patrick Emond Harry Sokol Michael James Chun Cheih Chao Jian-Rong Gao Mylene Perreault David L. Hava Bernd Schnabl 《Alcoholism, clinical and experimental research》2023,47(5):856-867
628.
Marc-André Legault Amina Barhdadi Isabel Gamache Audrey Lemaçon Louis-Philippe Lemieux Perreault Jean-Christophe Grenier Marie-Pierre Sylvestre Julie G. Hussin David Rhainds Jean-Claude Tardif Marie-Pierre Dubé 《Genetic epidemiology》2023,47(2):198-212
Genetic variants in drug targets can be used to predict the long-term, on-target effect of drugs. Here, we extend this principle to assess how sex and body mass index may modify the effect of genetically predicted lower CETP levels on biomarkers and cardiovascular outcomes. We found sex and body mass index (BMI) to be modifiers of the association between genetically predicted lower CETP and lipid biomarkers in UK Biobank participants. Female sex and lower BMI were associated with higher high-density lipoprotein cholesterol and lower low-density lipoprotein cholesterol for the same genetically predicted reduction in CETP concentration. We found that sex also modulated the effect of genetically lower CETP on cholesterol efflux capacity in samples from the Montreal Heart Institute Biobank. However, these modifying effects did not extend to sex differences in cardiovascular outcomes in our data. Our results provide insight into the clinical effects of CETP inhibitors in the presence of effect modification based on genetic data. The approach can support precision medicine applications and help assess the external validity of clinical trials. 相似文献