收费全文 | 120633篇 |
免费 | 6354篇 |
国内免费 | 149篇 |
耳鼻咽喉 | 1843篇 |
儿科学 | 5319篇 |
妇产科学 | 4049篇 |
基础医学 | 16876篇 |
口腔科学 | 2905篇 |
临床医学 | 8799篇 |
内科学 | 22905篇 |
皮肤病学 | 3523篇 |
神经病学 | 9496篇 |
特种医学 | 5230篇 |
外国民族医学 | 35篇 |
外科学 | 19627篇 |
综合类 | 1656篇 |
一般理论 | 29篇 |
预防医学 | 6055篇 |
眼科学 | 3437篇 |
药学 | 8464篇 |
中国医学 | 330篇 |
肿瘤学 | 6558篇 |
2018年 | 948篇 |
2017年 | 828篇 |
2016年 | 1161篇 |
2015年 | 1320篇 |
2014年 | 1704篇 |
2013年 | 2500篇 |
2012年 | 3293篇 |
2011年 | 3350篇 |
2010年 | 2084篇 |
2009年 | 2049篇 |
2008年 | 3446篇 |
2007年 | 3683篇 |
2006年 | 3818篇 |
2005年 | 3907篇 |
2004年 | 3829篇 |
2003年 | 3722篇 |
2002年 | 3666篇 |
2001年 | 7166篇 |
2000年 | 7143篇 |
1999年 | 6018篇 |
1998年 | 1683篇 |
1997年 | 1609篇 |
1996年 | 1369篇 |
1995年 | 1232篇 |
1994年 | 1113篇 |
1993年 | 1159篇 |
1992年 | 3833篇 |
1991年 | 3652篇 |
1990年 | 3642篇 |
1989年 | 3427篇 |
1988年 | 3062篇 |
1987年 | 2957篇 |
1986年 | 2872篇 |
1985年 | 2684篇 |
1984年 | 2003篇 |
1983年 | 1653篇 |
1982年 | 955篇 |
1981年 | 948篇 |
1979年 | 1873篇 |
1978年 | 1398篇 |
1977年 | 1150篇 |
1976年 | 973篇 |
1975年 | 1222篇 |
1974年 | 1269篇 |
1973年 | 1254篇 |
1972年 | 1088篇 |
1971年 | 1040篇 |
1970年 | 930篇 |
1969年 | 829篇 |
1968年 | 800篇 |
![点击此处可从《Clinical endocrinology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Methods: Day 3 to day 7 after admission to a stroke unit, 64 persons with stroke were assessed twice, using the SwePASS, by two physiotherapists. Inter-rater reliability was determined using percentage-agreement and the rank-invariant method: relative position, relative concentration, and relative rank variance.
Results: The raters showed a percentage agreement of ≥75% in the assessments using the SwePASS. For 9 of the 12 items, the percentage agreement was >80%. For 8 of the 12 items, there was a statistically significant change in position, revealed in relative position values between 0.08 and 0.15. Three items had statistically significant positive relative concentration values between ?0.11 and 0.10. Except for a statistically significant negligible relative variance value of 0.01 for the items 1 and 8, there was no relative variance.
Conclusions: The SwePASS shows an acceptable inter-rater reliability, albeit with potential for improvement. The reliability can be improved by a consensus how to interpret the scale between the raters prior to implementation in the clinic. 相似文献
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