全文获取类型
收费全文 | 51811篇 |
免费 | 3546篇 |
国内免费 | 796篇 |
专业分类
耳鼻咽喉 | 177篇 |
儿科学 | 600篇 |
妇产科学 | 536篇 |
基础医学 | 2630篇 |
口腔科学 | 511篇 |
临床医学 | 5860篇 |
内科学 | 3782篇 |
皮肤病学 | 374篇 |
神经病学 | 1065篇 |
特种医学 | 985篇 |
外科学 | 3414篇 |
综合类 | 13573篇 |
现状与发展 | 2篇 |
一般理论 | 38篇 |
预防医学 | 16626篇 |
眼科学 | 274篇 |
药学 | 2674篇 |
287篇 | |
中国医学 | 2125篇 |
肿瘤学 | 620篇 |
出版年
2024年 | 134篇 |
2023年 | 779篇 |
2022年 | 1497篇 |
2021年 | 2101篇 |
2020年 | 2286篇 |
2019年 | 1997篇 |
2018年 | 1783篇 |
2017年 | 1540篇 |
2016年 | 1442篇 |
2015年 | 1426篇 |
2014年 | 3749篇 |
2013年 | 3818篇 |
2012年 | 3601篇 |
2011年 | 3843篇 |
2010年 | 3181篇 |
2009年 | 2657篇 |
2008年 | 2915篇 |
2007年 | 2684篇 |
2006年 | 2362篇 |
2005年 | 1901篇 |
2004年 | 1513篇 |
2003年 | 1182篇 |
2002年 | 888篇 |
2001年 | 751篇 |
2000年 | 633篇 |
1999年 | 479篇 |
1998年 | 414篇 |
1997年 | 370篇 |
1996年 | 316篇 |
1995年 | 291篇 |
1994年 | 227篇 |
1993年 | 130篇 |
1991年 | 156篇 |
1990年 | 137篇 |
1989年 | 119篇 |
1988年 | 122篇 |
1986年 | 124篇 |
1985年 | 212篇 |
1984年 | 287篇 |
1983年 | 208篇 |
1982年 | 230篇 |
1981年 | 200篇 |
1980年 | 198篇 |
1979年 | 166篇 |
1978年 | 167篇 |
1977年 | 144篇 |
1976年 | 190篇 |
1975年 | 144篇 |
1974年 | 120篇 |
1973年 | 124篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
加强医疗仪器设备管理提高医疗仪器设备使用效益 总被引:1,自引:0,他引:1
加强医疗设备管理,提高设备使用效益,制定合理的计划,正确选购设备,为医院提供品种、性能、精度适当的技术装备。 相似文献
82.
腹腔镜下胆总管探查术22例临床分析 总被引:1,自引:0,他引:1
目的探讨腹腔镜下胆总管探查术的方法及避免副损伤的措施.方法应用Olympus腹腔镜及操作器械一套.全麻下进行,体位及穿刺点均与腔镜胆囊切除相同.穿刺证实胆总管后,对胆总管直径>1.5 cm者用针式电钩直接切开;胆总管直径<1.2 cm者用剪刀切开,纵行切开1.0~1.5 cm,直视下用常规器械或胆管镜网篮取石,胆总管Ⅰ期缝合.结果本组22例中,21例成功,1例由于胆囊三角区粘连紧密,镜下缝合胆总管困难中转开腹手术.结论腹腔镜下胆囊切除,胆总管探查与传统开腹手术比较具有微创特点,胆总管Ⅰ期缝合更体现微创外科的优势. 相似文献
83.
关于高等医学教育管理体制与学制改革的思考 总被引:9,自引:1,他引:8
高等医学教育管理体制与学制改革是二十一世纪社会发展的需要。文章阐述了医学教育小规模、长学制、高投入的基本特征,强调了遵循医学教育规律的重要性,分析了医学院在综合性大学的重要地位,医学院与附属医院以及相关院系的关系。文章还依据社会发展的需要和医学教育国际化的趋势,分析了医学教育学制调整的必要性以及学制调整思路。 相似文献
84.
目的:为改革和完善上海市农村合作医疗的政策,制度,规划,计划,措施提供科学依据。方法:使用调查研究,比较研究,描述性统计及SAS统计分析等方法。结果:调查分析了上海市1997-1999年8区(县)合作医疗资金来源,数量,比例,补偿等。结论:1997年以来,上海市农村合作医疗得到了快速发展,仍存在保障水平,补偿比例,投保率低下及发展不平衡,资金使用不合理等问题。 相似文献
85.
Teaching psychiatric ethics 总被引:1,自引:0,他引:1
S Bloch 《Medical education》1988,22(6):550-553
In the last decade, we have witnessed a burgeoning of interest in ethical issues amongst psychiatrists. Teaching of the subject, however, remains at a rudimentary stage. Various approaches to such instruction are available, particularly modelling (students observe their experienced counterpart), the case method (examining specific clinical situations which involve a need for ethical decision-making), and the seminar approach (trainees are exposed to a core body of knowledge, mainly theoretical in nature). Faced with these different teaching models, the University of Oxford Department of Psychiatry has opted for a blend of all three approaches, which incorporates two goals: an increase in the trainees' sensitivity to the many intricate moral dilemmas facing the psychiatric profession; and their familiarity with salient concepts in moral philosophy which constitute a basis for ethical reasoning and which have a bearing on clinical practice. The teaching programme comprises the following: a pair of trainees prepares a presentation on an aspect of psychiatric ethics under the supervision of a senior psychiatrist. A moral philosopher assumes the role of discussant of the ethical problems raised by the trainees; this is followed by a general discussion. Topics have included involuntary hospitalization, dual loyalty, suicide, psychiatric diagnosis, and ethical issues in various spheres of psychiatric practice such as sex therapy, psychotherapy and child psychiatry. The approach has worked effectively and proved rewarding to all participants involved. 相似文献
86.
Regulations evolve and risks management becomes one of the biomedical engineers' preoccupations. Thus, risks are various, and consequently it is difficult to identify, to manage and to bring them under control. Furthermore, regulations exist for sectors like healthcare technology monitoring, but it is not the same thing for instance for the risks linked to the maintenance. Thus regulation in the sector of maintenance evolves and the decree of the 1st July law of health safety is going to modify the biomedical environment. The goal of this work is to study the tools and the methods of risks management that have been used for several years in the industrial field and to use them for some biomedical equipment like monitors or IV pumps. These methods adapted to these equipment will allow us to determine some appropriate rules of maintenance. 相似文献
87.
Objective: Considering the growing use of cellular phones and the fast appearance of new phone models, the electromagnetic interference of currently popular cellular phones on electronic medical equipment was tested. Methods: Three Personal Communication System cellular phones were put at different distances from multiple electronic medical devices, the interference effect was observed and the electromagnetic field strength measured with a spectrum analyser. Results: Only two small pieces of equipment, the CO2 airway adapter and the haemoglucostix meter were affected and then only when the phone was in very close proximity. Conclusion: Compared to the results of our study in 1997 testing Global System for Mobile Communication phones, the Personal Communication System phones generated less electromagnetic interference. However a much larger scaled study and an accurate international electromagnetic interference standard are recommended before any change in the current restrictive hospital policy on mobile phone usage could be recommended. 相似文献
88.
Comparison of local and general anesthesia in tension-free (Lichtenstein) hernioplasty: a prospective randomized trial 总被引:3,自引:0,他引:3
To compare pulmonary effects, postoperative pain and fatigue, morbidity, patient satisfaction, and cost of different anesthetic
techniques for inguinal hernia repair, 50 patients were randomized to local and general anesthesia groups (LA and GA). All
patients received the same premedications and the same postoperative analgesic regimen. The standardized postoperative analgesic,
intramuscular pyroxicam 20 mg, was given to all patients in the recovery room and an additional 20 mg on the same day was
given as requested by each patient. Pulmonary function studies and arterial blood gas analysis were performed 1 h prior to
the operation and at the postoperative 8th and 24th hours. All patients underwent Lichtenstein's tension-free hernioplasty.
Postoperative pain and fatigue were registered 8 h and 24 h after the operation. A questionnaire was filled out by the patients,
and they were asked to give grades for the general comfort of the anesthesia and the surgical procedure (1=worst, 10=best).
Postoperative pulmonary function tests were significantly poorer in the GA group both on 8th- and 24th-hour measurements (P<0.05). Patients who underwent LA had significantly lower PCO2 and higher PO2 at the postoperative 8th hour (P<0.05). Mean postoperative pain and fatigue scores revealed a significant difference in favor of local anesthesia at only
the 8th hour (P<0.05). There were two complications, one in each group (a hematoma in LA and a urinary retention in GA). Patient satisfaction
grades were not different in the two groups. We conclude that LA in inguinal hernia repair does not adversely affect pulmonary
functions, patients feel less pain, and patient satisfaction is comparable to that with GA.
Electronic Publication 相似文献
89.
This report describes a model for identifying sets of teaching abilities considered to be effective for medical school teaching staff, based on roles teachers assume and functions they are expected to perform as instructors. The specification of these teaching abilities was the first step in the development of a comprehensive course on Medical Instruction at the Basic Institute of Medical and Agricultural Biology of the State University of Sao Paulo, Botucatu, Brazil, where the senior author is employed. The work was based on the assumption that medical school teachers are expected to assume a variety of teaching roles and that identification and specification of the abilities that define their roles can result in more effective and efficient teaching. 相似文献
90.
重视医学信用伦理的研究与开发 总被引:7,自引:3,他引:4
医疗行业市场化是必然趋势。在医疗行业市场化进程中,医学伦理道德除了道德价值之外,还含有积极的经济内涵。医学伦理道德也是重要的医疗资源,通过参与医疗市场资源的配制和运作,也可以产生经济效益,转化为医疗资本。医疗行业要重视医学伦理道德资源的开发。信用伦理是在市场经济条件下形成的,这是医学伦理学所面临的新课题。笔者认为,不说谎、不期诈,兑现承诺,保证医疗质量,发扬医学人道主义,是医学信用伦理的四项基本标准。 相似文献