全文获取类型
收费全文 | 115084篇 |
免费 | 30115篇 |
国内免费 | 1137篇 |
专业分类
耳鼻咽喉 | 2504篇 |
儿科学 | 3175篇 |
妇产科学 | 2716篇 |
基础医学 | 5367篇 |
口腔科学 | 5378篇 |
临床医学 | 27469篇 |
内科学 | 27966篇 |
皮肤病学 | 3664篇 |
神经病学 | 14087篇 |
特种医学 | 3970篇 |
外科学 | 19198篇 |
综合类 | 237篇 |
现状与发展 | 40篇 |
一般理论 | 28篇 |
预防医学 | 15239篇 |
眼科学 | 2498篇 |
药学 | 2079篇 |
中国医学 | 43篇 |
肿瘤学 | 10678篇 |
出版年
2024年 | 761篇 |
2023年 | 5159篇 |
2022年 | 1393篇 |
2021年 | 3242篇 |
2020年 | 5642篇 |
2019年 | 2494篇 |
2018年 | 7390篇 |
2017年 | 7711篇 |
2016年 | 8357篇 |
2015年 | 8510篇 |
2014年 | 11022篇 |
2013年 | 13003篇 |
2012年 | 5061篇 |
2011年 | 4803篇 |
2010年 | 7522篇 |
2009年 | 9729篇 |
2008年 | 4643篇 |
2007年 | 3514篇 |
2006年 | 4560篇 |
2005年 | 3070篇 |
2004年 | 2350篇 |
2003年 | 2075篇 |
2002年 | 1851篇 |
2001年 | 1933篇 |
2000年 | 1213篇 |
1999年 | 1786篇 |
1998年 | 2211篇 |
1997年 | 2020篇 |
1996年 | 2054篇 |
1995年 | 1792篇 |
1994年 | 1173篇 |
1993年 | 1000篇 |
1992年 | 800篇 |
1991年 | 708篇 |
1990年 | 559篇 |
1989年 | 568篇 |
1988年 | 536篇 |
1987年 | 443篇 |
1986年 | 417篇 |
1985年 | 361篇 |
1984年 | 318篇 |
1983年 | 362篇 |
1982年 | 310篇 |
1981年 | 260篇 |
1980年 | 175篇 |
1979年 | 114篇 |
1978年 | 167篇 |
1977年 | 149篇 |
1976年 | 121篇 |
1974年 | 116篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
261.
Christopher Griffin MRACOG Michael John Peek PhD FRACOG DDU 《The Australian & New Zealand journal of obstetrics & gynaecology》1997,37(2):235-237
EDITORIAL COMMENT": The editorial committee found this case report irresistible as an example of triumph over misfortune and disability. Iatrogenic, accidental, prolonged and complete amnioreduction is unique in the editor's clinical experience and knowledge of the literature. Importantly the case also illustrates that conservative management of 'premature rupture of the membranes'can be successful. The favourable outcome may have been related to the abdominal rather than the usual cervical route of amnioreduction, and the restoration of normal liquor volume after the amnioreduction was discontinued. Moreover, in spontaneous rupture of the membranes the cause of the problem is likely to be persistent.
Summary: A successful outcome for an infant following complete iatrogenic amnioreduction at 20 weeks gestation is possible without any invasive medical treatment. 相似文献
Summary: A successful outcome for an infant following complete iatrogenic amnioreduction at 20 weeks gestation is possible without any invasive medical treatment. 相似文献
262.
263.
264.
Andrew R. Hoellein MD Christopher A. Feddock MD Charles H. Griffith III MD MSPH John F. Wilson PhD Donald R. Barnett MD MSPH Pat F. Bass III MD MS T. Shawn Caudill MD MSPH 《Journal of general internal medicine》2004,19(5P2):562-565
Due to recent public debate and newly imposed resident work hour restrictions, we decided to investigate the relationship of resident call status to their ambulatory patients' satisfaction. Resident continuity clinic patients were asked to rate their level of satisfaction on a 10-point Likert-type scale. Using multiple regression approaches, these data were then assessed as a function of resident call status. We found that in 646 patient encounters, patient satisfaction scores were significantly less when the resident was postcall, 8.99 ± 1.8, than when not postcall, 9.31 ± 1.3. We herein discuss etiologies and implications of these findings for both patient care and medical education. 相似文献
265.
266.
267.
Edwin D. Boudreaux PhD Brian L. Cruz MD Brigitte M. Baumann MD 《Academic emergency medicine》2006,13(7):795-802
Objectives: The authors reviewed the evidence on performance improvement methods for increasing emergency department (ED) patient satisfaction to provide evidence-based suggestions for clinical practice.
Methods: Data sources consisted of searches through MEDLINE, CINAHL, PSYCHINFO, Cochrane Library, and Emergency Medicine Abstracts and a manual search of references. Articles were included if they reported a performance improvement intervention targeting patient satisfaction in the ED setting. Articles on studies not conducted in the United States or that failed to provide enough details to allow critical evaluation of the study were excluded. Two authors used structured evaluation criteria to independently review each retained study.
Results: Nineteen articles met all selection criteria. Three studies found varying levels of support for multicomponent interventions, predominantly focused on implementation of clinical practice guidelines for specific presenting complaints and process redesign. Sixteen studies evaluated single-component interventions, with the following having at least one supportive study: using alternating patient assignment to provider teams rather than "zone"-based assignment, enhancing provider communication and customer service skills, incorporating information delivery interventions (e.g., pamphlets, video) that target patient expectations, using preformatted charts, and establishing ED-based observation units for specific conditions such as asthma and chest pain.
Conclusions: There is modest evidence supporting a range of performance improvement interventions for improving ED patient satisfaction. Further work is needed before specific, evidence-based recommendations can be made regarding which process changes are most effective. Recommendations are made for improving the quality of performance improvement efforts in the ED setting. 相似文献
Methods: Data sources consisted of searches through MEDLINE, CINAHL, PSYCHINFO, Cochrane Library, and Emergency Medicine Abstracts and a manual search of references. Articles were included if they reported a performance improvement intervention targeting patient satisfaction in the ED setting. Articles on studies not conducted in the United States or that failed to provide enough details to allow critical evaluation of the study were excluded. Two authors used structured evaluation criteria to independently review each retained study.
Results: Nineteen articles met all selection criteria. Three studies found varying levels of support for multicomponent interventions, predominantly focused on implementation of clinical practice guidelines for specific presenting complaints and process redesign. Sixteen studies evaluated single-component interventions, with the following having at least one supportive study: using alternating patient assignment to provider teams rather than "zone"-based assignment, enhancing provider communication and customer service skills, incorporating information delivery interventions (e.g., pamphlets, video) that target patient expectations, using preformatted charts, and establishing ED-based observation units for specific conditions such as asthma and chest pain.
Conclusions: There is modest evidence supporting a range of performance improvement interventions for improving ED patient satisfaction. Further work is needed before specific, evidence-based recommendations can be made regarding which process changes are most effective. Recommendations are made for improving the quality of performance improvement efforts in the ED setting. 相似文献
268.
Assault-injured Adolescents Presenting to the Emergency Department: Causes and Circumstances 总被引:1,自引:0,他引:1
269.
Influence of Electromagnetic Fields on Function of Automated External Defibrillators 总被引:3,自引:2,他引:1
Roman Fleischhackl MD Florian Singer MD Wolfgang Nitsche PhD MSc Eng Guenther Gamperl MSc Engineering Bernhard Roessler MD Jasmin Arrich MD Sabine Fleischhackl MD Heidrun Losert MD Fritz Sterz MD Martina Mittlboeck PhD MSc Klaus Hoerauf PhD MD 《Academic emergency medicine》2006,13(1):1-6
Objectives: In this study, the authors tested whether electromagnetic interference (EMI) is able to impair correct electrocardiogram analysis and produce false‐positive shock advice from automated external defibrillators (AEDs) when the true rhythm is sinus. Methods: Nineteen healthy subjects were used to test five AEDs available on the Austrian market in a prospective, open, and sequence‐randomized study. The primary outcome variable was the absolute number of shocks advised in the presence of EMI. The secondary outcome was the number of impaired analyses caused by incorrectly detected patient movements or electrode failure. Results: Of 760 tests run, 18 (2.37%) cases of false‐positive results occurred, and two of five AEDs recommended shocks in the presence of sinus rhythm. Of 760 tests run, no electrode failures occurred. There were 27 occurrences (3.55%) of motion detected by an AED in the presence of strong electromagnetic fields. Conclusions: AED models differ in their response to EMI; it may be useful to consider specific safety requirements for areas with such fields present. Working personnel and emergency medical services staff should be informed about potential risks and the possible need for patient evacuation before AEDs are attached and shock recommendations are followed. 相似文献