全文获取类型
收费全文 | 41419篇 |
免费 | 3104篇 |
国内免费 | 760篇 |
专业分类
耳鼻咽喉 | 133篇 |
儿科学 | 358篇 |
妇产科学 | 358篇 |
基础医学 | 1862篇 |
口腔科学 | 300篇 |
临床医学 | 4793篇 |
内科学 | 2499篇 |
皮肤病学 | 289篇 |
神经病学 | 545篇 |
特种医学 | 786篇 |
外科学 | 1674篇 |
综合类 | 11326篇 |
现状与发展 | 2篇 |
一般理论 | 38篇 |
预防医学 | 15411篇 |
眼科学 | 231篇 |
药学 | 1973篇 |
289篇 | |
中国医学 | 1940篇 |
肿瘤学 | 476篇 |
出版年
2024年 | 133篇 |
2023年 | 640篇 |
2022年 | 1235篇 |
2021年 | 1661篇 |
2020年 | 1966篇 |
2019年 | 1264篇 |
2018年 | 1184篇 |
2017年 | 1148篇 |
2016年 | 1178篇 |
2015年 | 1132篇 |
2014年 | 3040篇 |
2013年 | 3161篇 |
2012年 | 2937篇 |
2011年 | 3257篇 |
2010年 | 2699篇 |
2009年 | 2270篇 |
2008年 | 2565篇 |
2007年 | 2368篇 |
2006年 | 2062篇 |
2005年 | 1656篇 |
2004年 | 1318篇 |
2003年 | 1036篇 |
2002年 | 776篇 |
2001年 | 656篇 |
2000年 | 555篇 |
1999年 | 410篇 |
1998年 | 351篇 |
1997年 | 321篇 |
1996年 | 282篇 |
1995年 | 258篇 |
1994年 | 176篇 |
1993年 | 99篇 |
1992年 | 97篇 |
1991年 | 143篇 |
1990年 | 124篇 |
1989年 | 104篇 |
1988年 | 106篇 |
1987年 | 82篇 |
1986年 | 106篇 |
1985年 | 88篇 |
1984年 | 90篇 |
1983年 | 77篇 |
1982年 | 82篇 |
1981年 | 58篇 |
1980年 | 66篇 |
1979年 | 32篇 |
1978年 | 55篇 |
1977年 | 57篇 |
1976年 | 57篇 |
1975年 | 39篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
41.
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
42.
观察18例32眼下蹲运动与高眼压的关系,分为下蹲120次,100次及80次三且,每组分别观察10眼、11眼及11眼,结果各组运动后眼压均见下降,平均为1.027±0.486kPa,1.355±0.770kPa及1.325±0.422kPa,运动前后有非常显著性差异,但各组之间差异不显著。同时观察3小时内眼压动态变化,下蹲120次组眼压下降维持时间最长,在运动后3小时与运动前眼压比较及与其余两组第3 相似文献
43.
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
44.
Angela Madden 《Journal of human nutrition and dietetics》1992,5(5):267-273
This paper presents the results obtained from 87 questionnaires completed by dietitians about the dietary management of gall-biadder disease. Of the patients referred to the dietitians, 86% were referred by surgeons. Of the dietitians that responded 77% thought that there was a role for low fat diets in the management of these patients; 92% would advise a low fat diet to help avoid pain, and 11% would advise a low fat diet to patients with gall-bladder disease who did not have pain, steatorrhoea or obesity.
The paper reviews the available evidence concerning the effect of dietary fat on the gall-bladder; it is concluded that, at present, there is little data to support the therapeutic use of a low fat diet for individuals with gall-stones. 相似文献
The paper reviews the available evidence concerning the effect of dietary fat on the gall-bladder; it is concluded that, at present, there is little data to support the therapeutic use of a low fat diet for individuals with gall-stones. 相似文献
45.
46.
Summary: The Internet contains a vast amount of medically relevant information. In order to access this information, however, many networks require one to master applications written in UNIX, an operating system considered by many not to be user friendly. Although these tools may be available on the campus, it is difficult to teach their use unless there is some immediate benefit to the already busy user. From that standpoint, it is important for instructors to realize that common UNIX applications can be utilized as classroom tools to significantly enhance the learning experience by facilitating teacher/student communication. Also, whilst the student enjoys greater communication with the instructor (and with other students) he/she is also becoming adept at using information management tools. 相似文献
47.
Summary: Summary. A study was conducted to determine whether the attitudes of medical students to death and caring changed during the 3 months following exposure to cadaver dissection. All first-year students were invited to complete a questionnaire immediately before their initial cadaver dissection experience, after 6 weeks, and after a further 3 months. The questionnaire reflected attitudes to death, violent death, death of someone known to the respondent and caring when someone known to the respondent is seriously injured. Ethnicity and previous exposure to dying has no effect on responses, but overall men students' reactions were significantly less than for women ( P < 0.001). The responses given on the final part of the questionnaire after 3 months were significantly lower than those to most questions in the first part of the questionnaire. The exceptions were those questions where the subject in the given scenario was known to the respondent, where reactions were rated significantly greater ( P < 0.001) in the follow-up questionnaire and can be explained on the basis that they were a personal referent.
Students rapidly develop a coping mechanism which enables them to view cadaver dissection as an occupation quite divorced from living human beings. During these early months of training solicitude decreases for those who die who are unknown to them, but concern for personal referents increases. Educators should be aware of the dramatic change of attitudes among students and the process of professionalization which might influence their caring of future patients. 相似文献
Students rapidly develop a coping mechanism which enables them to view cadaver dissection as an occupation quite divorced from living human beings. During these early months of training solicitude decreases for those who die who are unknown to them, but concern for personal referents increases. Educators should be aware of the dramatic change of attitudes among students and the process of professionalization which might influence their caring of future patients. 相似文献
48.
T. WlSBORG A. B. GUTTORMSEN M. B. SøRENSEN H. K. FLAATTEN 《Acta anaesthesiologica Scandinavica》1994,38(7):657-661
The use of anaesthesiologists in prehospital emergency care is controversial. We wanted to assess the impact of an anaesthesiologist and a short time interval from acceptance of a mission to take–off at survival rates in a rural/urban emergency medical service. Prospectively registered data for 991 consecutive patients through a 12–month period were retrospectively evaluated by an independent foreign expert. Of all primary missions, 3.3% were considered probably lifesaving from site of injury to receiving hospital. Of these, the lifesaving result in 50% were dependent on both the qualifications of the anaesthesiologist and a short response time. Survival from hospital admission to discharge was 44%. All patients were discharged to their own homes, able to live a fully functional life. The consistent use of anaesthesiologists compared to less qualified personnel and the maintaining of response times below presently required minima doubles the potential for lives saved in services comparable to the one studied. 相似文献
49.
50.
A recent large increase in Caesarean section (CS) in Italy was the initial stimulus for a study to identify risk factors for CS and, if possible, to suggest strategies to counteract the rise. The study was conducted in three hospitals where a wide range of individual variables was collected from the clinical records and from personal interviews. Crude CS rates and odds ratios were evaluated for each single variable while logistic regression has been used to investigate possible confounding factors. The study involved 1316 consecutive deliveries. Crude CS rates were 29.4%, 15.7% and 16.1%. Variables identified as high risk factors were pre-eclampsia, previous CS, breech and other non-vertex presentations. Antenatal care under an obstetrician working in the same hospital, a low number of antenatal consultations, previous miscarriages, offer (by obstetrician) and request (by women) for CS showed significantly high odds ratios (ORs). Previous live births was strongly negatively associated with CS. No relationship between type of delivery and social status was observed while a physician factor was detected in all three hospitals where rates for different physicians ranged from 0% to 52.8%. Apart from the main medical indications for Caesarean section (previous CS, breech presentation), the results seem to indicate that individual practice style may be an important determinant of the wide variation in the rates of Caesarean delivery. While this may have been suspected before this study, these results are the first hard data to indicate that, in Italy, CS is widely performed for non-medical reasons. 相似文献