全文获取类型
收费全文 | 64139篇 |
免费 | 5480篇 |
国内免费 | 1199篇 |
专业分类
耳鼻咽喉 | 286篇 |
儿科学 | 886篇 |
妇产科学 | 602篇 |
基础医学 | 4226篇 |
口腔科学 | 1130篇 |
临床医学 | 7590篇 |
内科学 | 6348篇 |
皮肤病学 | 675篇 |
神经病学 | 2242篇 |
特种医学 | 1220篇 |
外国民族医学 | 11篇 |
外科学 | 3598篇 |
综合类 | 13895篇 |
现状与发展 | 6篇 |
一般理论 | 38篇 |
预防医学 | 18103篇 |
眼科学 | 1460篇 |
药学 | 3043篇 |
299篇 | |
中国医学 | 2649篇 |
肿瘤学 | 2511篇 |
出版年
2024年 | 201篇 |
2023年 | 1150篇 |
2022年 | 1984篇 |
2021年 | 2839篇 |
2020年 | 2976篇 |
2019年 | 2306篇 |
2018年 | 2128篇 |
2017年 | 2139篇 |
2016年 | 2152篇 |
2015年 | 2119篇 |
2014年 | 4493篇 |
2013年 | 4945篇 |
2012年 | 4172篇 |
2011年 | 4524篇 |
2010年 | 3756篇 |
2009年 | 3274篇 |
2008年 | 3558篇 |
2007年 | 3380篇 |
2006年 | 2927篇 |
2005年 | 2461篇 |
2004年 | 1992篇 |
2003年 | 1630篇 |
2002年 | 1329篇 |
2001年 | 1095篇 |
2000年 | 935篇 |
1999年 | 742篇 |
1998年 | 635篇 |
1997年 | 565篇 |
1996年 | 516篇 |
1995年 | 449篇 |
1994年 | 366篇 |
1993年 | 282篇 |
1992年 | 250篇 |
1991年 | 298篇 |
1990年 | 251篇 |
1989年 | 193篇 |
1988年 | 192篇 |
1987年 | 155篇 |
1986年 | 184篇 |
1985年 | 215篇 |
1984年 | 173篇 |
1983年 | 141篇 |
1982年 | 159篇 |
1981年 | 115篇 |
1980年 | 111篇 |
1979年 | 58篇 |
1978年 | 84篇 |
1977年 | 71篇 |
1976年 | 68篇 |
1975年 | 48篇 |
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
21.
This study examines the locations of family homes, medical schools and places of specialist training, and work of doctors qualifying from UK medical schools in 5 calendar years between 1974 and 1993. The contribution of each UK region to the medical workforce relative to its population is assessed and trends over time are examined. The relationship between place of family home and medical school attended is examined for 14,108 doctors. Career appointment location and its relationship to medical school and family home loc‐ation are examined for over 4000 doctors. For the qualifiers of 1983, an additional analysis incorporating place of training is included. Large differences were found in the percentage of medical students from local family homes attending each regional medical school. In some cases differences reflected local populations but other cases had no obvious cause. Over all cohorts studied, 38% of respondents attended a medical school in the region of their family home (32% of 1993 qualifiers), 42% held a career post in the same region as their medical school, and 38% held a career post in the same region as their family home. Among the qualifiers of 1983, 65% had a career post in the same region as their postgraduate training, 34% also attended medical school in the same region, and 19% also came from family homes in the same region. More women than men took up a career post in the same region as their postgraduate training. The relationships to family home and medical school did not differ by gender. Consultants appeared slightly less likely than GPs to have stayed within a region, but this difference was not statistically significant. 相似文献
22.
A. T. McWILLIAMS 《Medical education》1988,22(2):99-103
Medical students are allocated little curriculum time for exposure to expert systems. ESTA, a computer model of an expert system, was developed to make best use of this time. The nature of the students' interaction with ESTA is described, and their reactions to the expert system concepts and the place of expert systems in medicine are presented. A discussion of these reactions draws some conclusions about teaching expert systems in particular, and computers in general, in the basic medical course. 相似文献
23.
D. I. NEWBLE 《Medical education》1988,22(3):200-204
A structured clinical examination has been an integral component of the final-year examinations conducted by the Departments of Medicine and Surgery at the University of Adelaide for the last 8 years. It has been used as an alternative to the traditional clinical examination. This paper describes the results of ongoing student and examiner surveys carried out to determine their views and satisfaction with this new approach. It also briefly discusses the feasibility of introducing such an examination into a conventional medical school environment. The surveys showed a remarkable level of acceptance and support by both students and examiners. This positive reaction has been maintained over the 8-year period. The main reasons seem to be its perceived relevance and fairness. Students also appear to be directing their learning in a direction thought desirable by teachers. No significant problems have been encountered with the practical implementation of the method. 相似文献
24.
The Adelaide Diagnostic Learning Inventory (ADLIMS) is a measure of learning styles and learning pathologies that was designed to investigate the impact of traditional approaches to learning versus problem-based learning and to identify students whose approach to learning tasks predicted poor academic performance. In this study, some important psychometric properties of the ADLIMS were examined, including its factor structure. In this study, factor replicability across samples was argued to provide a more robust and psychologically meaningful factor solution than that which can be obtained using traditional mathematical criteria. The results of the factor analysis did not confirm the presence of the four factor solution earlier reported for the ADLIMS, but did identify three clear factors that had very high replicability. An inspection of the items comprising these three factors showed that factor 1 tapped subjective distress related to poor study habits, lack of motivation to study, and distraction from social activities. Factor 2 tapped distress arising from high achievement expectations that were hampered by superficial or disorganized study habits that did not enable the student to grasp the relationships between concepts and ideas. Factor 3 tapped positive feelings and a sense of satisfaction associated with a problem-based approach to the learning of new study material. Although the internal reliability of the ADLIMS subscales met the requirements of a measure to be used in general research such as in the investigation of correlates among groups of medical students, they did not meet the higher requirements of a measure to be used to identify or predict individuals with pathological learning styles. 相似文献
25.
P. V. PEPLOW 《Medical education》1990,24(5):426-432
This paper reports an attempt to develop self-directed learning skills in second-year medical students by introducing case-based projects into the gross anatomy course at a long-established medical school. The programme and students' responses to a questionnaire completed at the end of the year are presented. Information on the various resources used by students to find information is given. The performance of students in the case-based components of the course has been evaluated and also in the more traditional end-of-year written examination. The data confirm that students have recognized that the projects were about obtaining a deeper understanding of the anatomy, and the programme appears to have promoted the use and study of library texts. 相似文献
26.
27.
This paper describes a teaching programme for final- (sixth-) year undergraduate medical students during their 10-week term in child health. Students attend schools on two occasions and are actively involved in the physical, educational and emotional assessment of children. The advantages of the programme include active participation by the students, contact with children in a less threatening environment, learning new skills in the assessment of children, and knowledge of common screening procedures. Student evaluation of the programme has been positive. 相似文献
28.
Primary orthostatic tremor (POT) is a rare disorder characterised by an intense sense of unsteadiness upon standing and a 16-Hz tremor in which the timing between tremor bursts in different muscles (unilateral and bilateral) remains constant. Hitherto, similar EMG activity has not been described in healthy subjects and it has been postulated that the oscillations seen in POT are primarily pathological. In this study, EMG was recorded from tibialis anterior in healthy subjects who were made unsteady through vestibular galvanic stimulation or leaning backwards. Under these conditions, a peak at approximately 16 Hz was seen in the coherence between the left and right tibialis anterior. This bilateral coherence was absent when the subjects activated the same muscles when not unsteady. These data indicate the existence of a physiological system involved in organising postural responses under circumstances of imbalance and characterised by a highly synchronised output at approximately 16 Hz. In addition, the results suggest that the core abnormality in POT may be an exaggerated sense of unsteadiness when standing still, which then elicits activity from a 16-Hz oscillator normally engaged in postural responses. 相似文献
29.
Peter F. Burke 《ANZ journal of surgery》1997,67(8):501-507
A review of the life and achievements of Kenneth Fitzpatrick Russell, whose death in his 76th year robbed us of a civilized gentleman who was at the zenith of his creative output, would be a daunting task, if only because of the breadth of his hobbies and interests: art and medical literature; reading; sinology and seal carving; numismatics, medical philately; bookbinding, collecting bookplates; carpentry; metal work, including pewter casting and silversmithing; model ship building and cooking. Yet these various interests were simply a backdrop to his public career at the University of Melbourne and the Royal Australasian College of Surgeons, where he laid the foundations of an international reputation as scholar and collector. 相似文献
30.
一种便携式野战多功能骨科手术器械。重量仅1.1kg,体积为215mm×105mm×15mm,如铅笔盒,而功能多达33种,具有结构紧凑、操作简便、一械多用、轻巧便携。价廉实用、效价比高的特点。是基层巡诊、抢险救灾救治中适用的骨科器械。 相似文献