收费全文 | 926237篇 |
免费 | 65013篇 |
国内免费 | 4495篇 |
耳鼻咽喉 | 12745篇 |
儿科学 | 28963篇 |
妇产科学 | 26375篇 |
基础医学 | 129232篇 |
口腔科学 | 25070篇 |
临床医学 | 78079篇 |
内科学 | 186542篇 |
皮肤病学 | 19264篇 |
神经病学 | 72874篇 |
特种医学 | 37513篇 |
外国民族医学 | 343篇 |
外科学 | 144832篇 |
综合类 | 24800篇 |
现状与发展 | 8篇 |
一般理论 | 248篇 |
预防医学 | 66716篇 |
眼科学 | 20673篇 |
药学 | 66878篇 |
20篇 | |
中国医学 | 3491篇 |
肿瘤学 | 51079篇 |
2019年 | 7293篇 |
2018年 | 9967篇 |
2017年 | 8044篇 |
2016年 | 8442篇 |
2015年 | 9915篇 |
2014年 | 13967篇 |
2013年 | 20736篇 |
2012年 | 27746篇 |
2011年 | 29537篇 |
2010年 | 18301篇 |
2009年 | 17169篇 |
2008年 | 27679篇 |
2007年 | 29293篇 |
2006年 | 29416篇 |
2005年 | 28715篇 |
2004年 | 27273篇 |
2003年 | 26567篇 |
2002年 | 25937篇 |
2001年 | 42032篇 |
2000年 | 43159篇 |
1999年 | 36695篇 |
1998年 | 10246篇 |
1997年 | 9375篇 |
1996年 | 9237篇 |
1995年 | 8584篇 |
1994年 | 8204篇 |
1993年 | 7656篇 |
1992年 | 28254篇 |
1991年 | 27044篇 |
1990年 | 26458篇 |
1989年 | 25392篇 |
1988年 | 23592篇 |
1987年 | 23194篇 |
1986年 | 22275篇 |
1985年 | 21167篇 |
1984年 | 15823篇 |
1983年 | 13479篇 |
1982年 | 8088篇 |
1979年 | 14589篇 |
1978年 | 10208篇 |
1977年 | 8627篇 |
1976年 | 8147篇 |
1975年 | 8959篇 |
1974年 | 10697篇 |
1973年 | 10182篇 |
1972年 | 9661篇 |
1971年 | 8917篇 |
1970年 | 8584篇 |
1969年 | 8025篇 |
1968年 | 7684篇 |
Methods: A retrospective analysis was performed to identify patients with isolated PCL injuries that underwent reconstruction between 2001 and 2014. Patients with multi-ligamentous injury or another concomitant knee pathology were excluded. Medical records were reviewed for demographic, clinical and operative data. Patients were contacted for administration of a telephone-based questionnaire which included the International Knee Documentation Committee (IKDC) Subjective Knee Evaluation form, Lysholm-Tegner scales, Marx activity scale (MAS), return to sport status, and patient satisfaction instruments.
Results: A total of 15 isolated PCL reconstructions in 14 patients with a mean age of 27.5 years (range 17–43) met the study inclusion criteria; mean follow up was 6.3 years (range 1.4–15.2). Pre-operatively, the primary complaint was knee instability in all patients; on physical examination, lack of a firm end point during posterior drawer testing was found in 93% (14/15) of the knees. In total, 12 of 15 knees underwent transtibial, single-bundle PCLR and three of 15 underwent tibial inlay, double bundle PCLR. Graft types included: quadriceps autograft (7/15), Achilles allograft (6/15), and hamstring autograft (2/15). There were no graft failures in our patient cohort. At most recent follow up the mean scores respectively on the IKDC form, Lysholm-Tegner scales and MAS were (standard deviation): 77.3 (16.5), 83.1 (17.9), 6.13 (2.6), and 7.1 (6.0). All fourteen patients were athletes prior to their injury and 79% (11/14) returned to sport and overall patient satisfaction was 9.2/10.
Conclusions: Isolated PCLR provides good outcomes at mean medium-term follow up with restoration of function, high rate of return to sport and overall patient satisfaction. 相似文献
Objective
The teaching hospital of Nancy, France, implemented a specific multidisciplinary care pathway (French acronym AMDPL) to improve the management of patients presenting with Lyme borreliosis (LB) suspicion. We aimed to assess the first year of activity of this care pathway.Patients and methods
We included all patients managed in the AMDPL pathway from November 1, 2016 to October 31, 2017. The first step was a dedicated Lyme disease consultation with an infectious disease specialist. Following this consultation, the LB diagnosis was either confirmed and adequate treatment was prescribed, or a differential diagnosis was established and patients received adequate management, or further investigations were required and patients were offered multidisciplinary management as part of a day hospitalization.Results
A total of 468 patients were included. LB diagnosis was confirmed in 15% of patients (69/468), 49% of patients received a differential diagnosis, and 26% (122/468) of patients had the LB diagnosis ruled out without receiving any other diagnosis.Conclusions
This is to our knowledge the first multidisciplinary center implemented in France for the management of patients presenting with LB suspicion related to polymorphous signs and symptoms. Several diagnoses could be confirmed or corrected, although some symptoms and complaints could not be explained. This cohort could improve our knowledge of LB and its differential diagnoses. 相似文献Research design and methods: A sample of 1139 reports received by the Shaanxi ADR Monitoring Center from January 2015 to December 2017 was selected. ADR report quality was evaluated using an ADR report quality evaluation system.
Results: None of the reports were rated as excellent and 1.40% (n = 16) as good. Report quality was better for new and serious reports than for general reports. Medical institutions generated higher quality reports than pharmaceutical manufacturers. Nurses generated higher quality reports than doctors, pharmacists, and other professionals. Reporters of different occupations showed significant differences in the quality of the indicators Reporting time limit, Intervention ADR time, ADR termination time, ADR intervention measures, Original disease, and Cause of medication (P = 0.000).
Conclusions: The ADR data quality was poor in western China, and of lower quality than reported data from previous research in other regions. Improvements in the quality and availability of ADR reports are urgently needed. 相似文献