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Background
The systolic dyssynchrony index (SDI) has been introduced as a measure of mechanical dyssynchrony using three-dimensional echocardiography to select patients who may benefit from cardiac resynchronization therapy (CRT). However, three-dimensional echocardiography may be inadequate in a number of patients with suboptimal acoustic window and no single echocardiographic measure of dyssynchrony has proven to be of value in selecting patients for CRT. Thus, the aim of this study was to determine the value of cardiovascular magnetic resonance (CMR) for the assessment of the SDI in patients with reduced LV function as well as in healthy controls using semi-automatic border tracking.Methods
We investigated a total of 45 patients including 35 patients (65 ± 8 years) with reduced LV function (EF 30 ± 11%) and a wide QRS complex as well as 10 control subjects (42 ± 21 years, EF 70 ± 11%). For cine imaging a standard SSFP imaging sequence was used with a temporal resolution of 40 frames per RR-interval. Quantitative analysis was performed off-line using a software prototype for semi-automatic border detection. Global volumes, ejection fraction and the SDI were calculated in each subject. SDI was compared with standard echocardiographic parameters of dyssynchrony.Results
The mean SDI differed significantly between patients (14 ± 5%) and controls (5 ± 2%, p < 0.001). An exponential correlation between the EF and the SDI was observed (r = -0.84; p < 0.001). In addition, a significant association between the SDI and the standard deviation of time to peak systolic motion of 12 LV segments (Ts-SD) determined by echocardiography was observed (r = 0.66, p = 0.002).Conclusion
The results of this preliminary study suggest that CMR with semi-automatic border detection may be useful for the assessment of mechanical dyssynchrony in patients with reduced LV function.No trial registration due to recruitment period between October 2004 and November 2006 相似文献Background/Purpose
Fast-track surgery is not well established for infants and children. The aim of our prospective study was to investigate the feasibility of fast-track concepts for pediatric surgical procedures including laparoscopic techniques.Methods
Fast-track concepts, including immediate postoperative feeding, immediate mobilization, and morphine sparing pain treatment, were established for pyeloplasty, appendectomy, bowel anastomosis, fundoplication, hypospadia repair, and full/partial nephrectomy. All consecutive patients undergoing these procedures were prospectively investigated from June 2004 to June 2005. Patients with additional relevant diseases, reoperation, and perforated appendicitis were excluded from fast-track treatment. The length of hospital stay was compared with data derived from the German reimbursement system with German diagnosis-related groups for patients with a similar case mix index and hospitals with a similar structure.Results
Of a total of 159 patients (mean age, 5.8 ± 5.3 years), 113 (71%) were finally treated according to the fast-track protocols. There were no complications associated with fast-track surgery. The intensity of pain during the immediate postoperative period was higher than 5 on a 10-point scale in children older than 4 years. Analgesia was excellent at all other time points. The mean hospital stay of fast-track patients was 2.3 ± 1 days and was significantly shorter (P < .01) compared with German diagnosis-related group data for all procedures (pyeloplasty, 1.9 ± 0.9 vs 12.2 ± 0.2; nephrectomy, 1.9 ± 1.0 vs 14.4 ± 2.8; bowel anastomosis, 3.2 ± 0.6 vs 12.9 ± 2.4; fundoplication, 3.2 ± 0.8 vs 15.2 ± 4.2; appendectomy, 3.7 ± 2.4 vs 6.3 ± 1.8; hypospadia repair, 2.1 ± 1 vs 8.4 ± 1.4). Two readmissions were recorded. Ninety-six percent of patients and parents scored the fast-track concepts as excellent.Conclusion
The feasibility of fast-track concepts in children is excellent, with short duration of hospitalization and high comfort. 相似文献Objectives
The percentage of free prostate-specific antigen (%fPSA) improves the diagnostic accuracy for prostate cancer when the serum level of total PSA (tPSA) is elevated. Approximately 14% of men with a tPSA below 3 μg/l have prostate cancer on biopsy, but the diagnostic value of %fPSA in such men is rather unknown. The purpose was to estimate the impact of %fPSA on future prostate cancer risk among men with a normal tPSA in prostate cancer screening.Subjects and methods
The first round of the Finnish arm of the European Randomized Trial for Screening of Prostate Cancer in 1996 to 1999 comprised 20,793 men aged 55–67 yr. Screen-negative men (tPSA level below 3.0 μg/l, n = 17,680) were followed up until the end of 2003. Cumulative risk of prostate cancer was calculated as a function of %fPSA.Results
During the median follow-up of 5.8 yr (range, 0–7.7 yr), 327 men were diagnosed with prostate cancer and 25% of them had a Gleason score of 7 or higher. Five years after the first screening, cumulative risk of prostate cancer was 1.7% (95%CI, 1.5–1.9%). Men with a %fPSA in the lowest quartile (<14.2%) showed a 6.9-fold risk compared with those with a level in the highest quartile (>23.7%).Conclusions
In men with a low serum tPSA, a low %fPSA is a strong predictor of later diagnosis of prostate cancer. 相似文献Headaches are the most common complaints among pediatric populations. Determining the cause and appropriate treatment for headaches may be challenging and costly, and the impact of headaches on the lives of patients and their families is not well understood.
ObjectiveA systematic literature review was conducted to examine what PROMs are currently used, and to identify quality of life (QoL) concepts important to children suffering from headaches and any known determinants of QoL.
MethodsEmbase, Medline, Web of Science, CINAHL, EBSCOhost, PsychINFO, Cochrane CENTRAL and Google Scholar were searched from their inception through to June 2021. Studies investigating QoL, using a validated outcome measure in pediatric patients with headaches, were included. Relevant studies were identified through title and abstract screening and full text review by two independent reviewers. A citation review of included studies was performed. QoL concepts were extracted from the outcome measures that were used in each study to develop a preliminary conceptual model of QoL in children suffering from headaches. Determinants of QoL were also identified and categorized.
ResultsA total of 5421 studies were identified in the search. Title and abstract screening resulted in the exclusion of 5006 studies. Among the 415 studies included for full text review, 56 were eligible for final analysis. A citation review resulted in the addition of five studies. Most studies were conducted in high-income countries and included a patient-sample accordingly (n = 45 studies). Sixteen different PROMs were identified in the included studies, of which the PedsQL was used the most often (n = 38 studies).
The most common health concepts reported were physical functioning (n = 113 items), social and psychological wellbeing (N = 117, n = 91 resp.). Twenty-five unique determinants of QoL were extracted from the included studies.
ConclusionThere is a need for a condition-specific PROM to facilitate the measurement of QoL outcomes in the pediatric headache population. A conceptual model was developed based on the findings from the health concepts. Findings from this review could be used for future qualitative interviews with pediatric patients with headaches to elicit and refine important QoL concepts.
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