全文获取类型
收费全文 | 4043篇 |
免费 | 191篇 |
国内免费 | 15篇 |
专业分类
耳鼻咽喉 | 58篇 |
儿科学 | 73篇 |
妇产科学 | 54篇 |
基础医学 | 808篇 |
口腔科学 | 45篇 |
临床医学 | 715篇 |
内科学 | 139篇 |
皮肤病学 | 22篇 |
神经病学 | 284篇 |
特种医学 | 59篇 |
外科学 | 434篇 |
综合类 | 591篇 |
预防医学 | 593篇 |
眼科学 | 15篇 |
药学 | 188篇 |
4篇 | |
中国医学 | 97篇 |
肿瘤学 | 70篇 |
出版年
2024年 | 2篇 |
2023年 | 61篇 |
2022年 | 156篇 |
2021年 | 201篇 |
2020年 | 177篇 |
2019年 | 266篇 |
2018年 | 277篇 |
2017年 | 204篇 |
2016年 | 135篇 |
2015年 | 92篇 |
2014年 | 361篇 |
2013年 | 384篇 |
2012年 | 220篇 |
2011年 | 275篇 |
2010年 | 215篇 |
2009年 | 187篇 |
2008年 | 232篇 |
2007年 | 158篇 |
2006年 | 125篇 |
2005年 | 112篇 |
2004年 | 68篇 |
2003年 | 74篇 |
2002年 | 35篇 |
2001年 | 47篇 |
2000年 | 25篇 |
1999年 | 15篇 |
1998年 | 12篇 |
1997年 | 13篇 |
1996年 | 12篇 |
1995年 | 7篇 |
1994年 | 7篇 |
1993年 | 5篇 |
1992年 | 5篇 |
1991年 | 4篇 |
1990年 | 6篇 |
1989年 | 2篇 |
1988年 | 4篇 |
1986年 | 3篇 |
1985年 | 7篇 |
1984年 | 11篇 |
1982年 | 9篇 |
1981年 | 4篇 |
1980年 | 6篇 |
1979年 | 7篇 |
1978年 | 9篇 |
1977年 | 4篇 |
1976年 | 3篇 |
1975年 | 1篇 |
1974年 | 2篇 |
1973年 | 1篇 |
排序方式: 共有4249条查询结果,搜索用时 250 毫秒
71.
H Chappuy P Taupin J Dimet YE Claessens JM Tréluyer G Chéron;the GFRUP 《Acta paediatrica (Oslo, Norway : 1992)》2012,101(10):1089-1094
Aim: We evaluated the extent to which parents understood the medical information about hospitalization of their child in an emergency department and looked for characteristics likely to increase the risk of poor comprehension. Methods: Prospective multicenter study in thirteen paediatric emergency departments. The parents and doctors completed questionnaires based on closed‐ended questions with a common core of four items: reasons of hospitalization, diagnosis, treatment and seriousness of child condition. We evaluated concordance between parents and doctor answers for these items by comparing their responses. Results: This study included 380 parents. Percentage of concordance was 55% for the reason of hospitalization, 78% for the diagnosis, 92% for the treatment, 48% for the seriousness of the condition and 19% for all four items. The mean number of concordant items was 2.76 (CI 95%, 2.66–2.86). Parents whose children seemed not in pain and parents who received additional information from the nurse showed significantly slightly higher levels of concordance with doctor’s answers (2.98 vs 2.66, p = 0.006 and 2.89 vs 2.60, p = 0.004, respectively). Conclusion: This study shows that improvements are required in the clarity of the information delivered to the parents. The assistance of nurses and optimal pain management may help to improve communication. 相似文献
72.
In the present review, the phenomenon of ultrasonic vocalization in rats will be outlined, including the three classes of vocalizations, namely 40-kHz calls of pups, and 22- and 50-kHz calls of juvenile and adult rats, their general relevance to behavioral neuroscience, and their special relevance to research on anxiety, fear, and defense mechanisms. Here, the emphasis will be placed on 40- and 22-kHz calls, since they are typical for various situations with aversive properties. Among other topics, we will discuss whether such behavioral signals can index a certain affective state, and how these signals can be used in social neuroscience, especially with respect to communication. Furthermore, we will address the phenomenon of inter-individual variability in ultrasonic calling and what we currently know about the mechanisms, which may determine such variability. Finally, we will address the current knowledge on the neural and pharmacological mechanisms underlying 22-kHz ultrasonic vocalization, which show a substantial overlap with mechanisms known from other research on fear and anxiety, such as those involving the periaqueductal gray or the amygdala. 相似文献
73.
Ingvar Ludwig Augusto de Souza Milene Gonçalves Quiles Bruno Cruz Boettger Antonio Carlos Campos Pignatari Paola Cappellano 《The Brazilian journal of infectious diseases》2018,22(3):239-242
Febrile Neutropenia represents a medical emergency and the use of appropriate antimicrobial therapy is essential for a better outcome. Although being time-consuming, conventional cultures and antimicrobial susceptibility tests remain the golden standard practices for microbiology identification. Final reports are typically available within several days. Faster diagnostic tools, such as species identification trough Matrix Assisted Laser Desorption Ionization-Time of Flight (MALDI-TOF) and molecular techniques might help to shorten time to diagnostic and also guide definitive therapy in this scenario. Here we present a case in which the use of a diagnostic molecular workflow combining MALDI-TOF and real-time PCR for relevant genes codifying antibiotic resistant integrated with instant communication report, led to a tailored and more appropriate treatment in a patient presenting with febrile neutropenia. 相似文献
74.
75.
76.
Birger Mo Morten Lindbaek Sten Harris Kjell Rasmussen 《International journal of audiology》2013,52(10):572-578
The objective of this study was to investigate social hearing in successful users of multichannel cochlear implants (CIs) and to compare the scores with those of a group of hearing-impaired adults using acoustical hearing aids (HAs). Out of 88 patients who had undergone surgery, 75 CI users with a mean age of 55 years and a mean pre-operative hearing level of 113dB in the better ear were compared with 59 users of acoustical HAs with a mean age of 56 years and a mean hearing level of 82dB in the better ear. Seven CI patients were non-users and were excluded from the study. The Performance Inventory for Profound and Severe Loss, a questionnaire that measures different aspects of hearing handicap, was used. The CI group scored significantly better than the HA group in three of six evaluated categories, measuring subjective intensity of sounds, speech with visual cues, and response to auditory failure. Awareness of environmental sounds, speech with no visual cues and personal reactions did not differ significantly. The group of successful CI users scored higher on a self-report measure than did a group of users of acoustical HAs with moderate- severe-profound deafness. The best CI users scored better than the best HA users, and the worst CI users scored worse than the worst HA users. 相似文献
77.
78.
79.
The link between miscommunication and poor patient outcomes has been well documented. To understand the current state of knowledge regarding interprofessional communication, an integrative review was performed. The review suggested that nurses and physicians are trained differently and they exhibit differences in communication styles. The distinct frustrations that nurses and physicians expressed with each other were discussed. Egos, lack of confidence, lack of organization and structural hierarchies hindered relationships and communications. Research suggested that training programs with the use of standardized tools and simulation are effective in improving interprofessional communication skills. Recommendations include education beyond communication techniques to address the broader related constructs of patient safety, valuing diversity, team science, and cultural humility. Future directions in education are to add courses in patient safety to the curriculum, use handover tools that are interprofessional in nature, practice in simulation hospitals for training, and use virtual simulation to unite the professions. 相似文献
80.
Purpose of studyThe first aim is to evaluate, in a sub-study, the recruitment process of the Senior Step Study, which was an intervention study on the self-management of mobility and fall risk; the second aim is to explore the reasons mentioned by older people, from three different settings, for (not) participating.MethodsSubjects were community-dwelling older persons, residents of homes for the elderly, and older persons regularly visiting community centres. The effectiveness of different recruitment procedures was analysed for each setting separately. We also analysed reasons for accepting and declining participation between the settings.ResultsThe total inclusion rate was 27.9%. A personal initial approach (i.e., first contact was face-to-face or in a group meeting) did not improve the inclusion rate. More subjects consented to participate after an introductory meeting (which was planned after the first face-to-face contact) compared to persons not having one (p < 0.01). At different settings, subjects gave different reasons for participation. No differences were found in the reasons for refusing participation. Especially in homes for the elderly, people refused to participate because the research was too burdensome.ConclusionsThe inclusion rates in this study are comparable to other self-management studies with older people. An introductory meeting during which the study design and benefits of participating are explained and formal interim evaluations of the recruitment process may benefit recruitment. Recruiting older persons for self-management tasks is possible with the appropriate recruitment process, enabling more research on this increasingly important research topic. 相似文献