全文获取类型
收费全文 | 130篇 |
免费 | 9篇 |
专业分类
儿科学 | 11篇 |
妇产科学 | 1篇 |
基础医学 | 16篇 |
口腔科学 | 36篇 |
临床医学 | 8篇 |
内科学 | 13篇 |
神经病学 | 37篇 |
特种医学 | 2篇 |
外科学 | 2篇 |
预防医学 | 11篇 |
药学 | 2篇 |
出版年
2021年 | 3篇 |
2020年 | 3篇 |
2019年 | 1篇 |
2018年 | 4篇 |
2017年 | 2篇 |
2016年 | 2篇 |
2015年 | 7篇 |
2014年 | 3篇 |
2013年 | 4篇 |
2012年 | 6篇 |
2011年 | 13篇 |
2010年 | 1篇 |
2009年 | 4篇 |
2008年 | 4篇 |
2007年 | 3篇 |
2006年 | 8篇 |
2005年 | 6篇 |
2004年 | 4篇 |
2003年 | 9篇 |
2002年 | 7篇 |
2001年 | 7篇 |
2000年 | 14篇 |
1999年 | 1篇 |
1998年 | 5篇 |
1997年 | 2篇 |
1994年 | 2篇 |
1993年 | 8篇 |
1992年 | 4篇 |
1991年 | 1篇 |
1990年 | 1篇 |
排序方式: 共有139条查询结果,搜索用时 15 毫秒
21.
Aad Verrips MD Johan A.P. Hiel MD Fons J.M. Gabreëls MD PhD Pieter Wesseling MD PhD Jan J. Rotteveel MD PhD 《Pediatric neurology》1997,16(4):323-325
We report 2 siblings with the Aicardi-Goutières syndrome (encephalopathy, basal ganglia calcifications, and persistent cerebrospinal fluid pleiocytosis). The eldest sibling is severely retarded; his younger brother has only mild, slowly progressive neurological deficits. To our knowledge, such a striking difference in clinical expression has not been reported previously. 相似文献
22.
van Reeuwijk J Janssen M van den Elzen C Beltran-Valero de Bernabé D Sabatelli P Merlini L Boon M Scheffer H Brockington M Muntoni F Huynen MA Verrips A Walsh CA Barth PG Brunner HG van Bokhoven H 《Journal of medical genetics》2005,42(12):907-912
Background: Walker-Warburg syndrome (WWS) is an autosomal recessive condition characterised by congenital muscular dystrophy, structural brain defects, and eye malformations. Typical brain abnormalities are hydrocephalus, lissencephaly, agenesis of the corpus callosum, fusion of the hemispheres, cerebellar hypoplasia, and neuronal overmigration, which causes a cobblestone cortex. Ocular abnormalities include cataract, microphthalmia, buphthalmos, and Peters anomaly. WWS patients show defective O-glycosylation of α-dystroglycan (α-DG), which plays a key role in bridging the cytoskeleton of muscle and CNS cells with extracellular matrix proteins, important for muscle integrity and neuronal migration. In 20% of the WWS patients, hypoglycosylation results from mutations in either the protein O-mannosyltransferase 1 (POMT1), fukutin, or fukutin related protein (FKRP) genes. The other genes for this highly heterogeneous disorder remain to be identified. Objective: To look for mutations in POMT2 as a cause of WWS, as both POMT1 and POMT2 are required to achieve protein O-mannosyltransferase activity. Methods: A candidate gene approach combined with homozygosity mapping. Results: Homozygosity was found for the POMT2 locus at 14q24.3 in four of 11 consanguineous WWS families. Homozygous POMT2 mutations were present in two of these families as well as in one patient from another cohort of six WWS families. Immunohistochemistry in muscle showed severely reduced levels of glycosylated α-DG, which is consistent with the postulated role for POMT2 in the O-mannosylation pathway. Conclusions: A fourth causative gene for WWS was uncovered. These genes account for approximately one third of the WWS cases. Several more genes are anticipated, which are likely to play a role in glycosylation of α-DG. 相似文献
23.
Development and psychometric evaluation of the TAPQOL: A health-related quality of life instrument for 1–5-year-old children 总被引:1,自引:0,他引:1
M. Fekkes N.C.M. Theunissen E. Brugman S. Veen E.G.H. Verrips H.M. Koopman T. Vogels J.M. Wit S.P. Verloove-Vanhorick 《Quality of life research》2000,9(8):961-972
The 43-item TNO-AZL Preschool Children Quality of Life (TAPQOL) questionnaire was developed to meet the need for a reliable
and valid instrument for measuring parent's perceptions of health-related quality of life (HRQoL) in preschool children. HRQoL
was defined as health status in 12 domains weighted by the impact of the health status problems on well-being. The aim of
this study was to evaluate the psychometric performance of the TAPQOL. A sample of 121 parents of preterm children completed
the TAPQOL questionnaire (response rate 88%) as well as 362 parents of children from the general population (response rate
60%). On the base of Cronbach's α, item-rest correlation, and principal component analysis, the TAPQOL scales were constructed
from the data for the preterm children sample. The psychometric performance of these scales was evaluated for both the preterm
children sample and the general population sample. Cronbach's α ranged from 0.66 to 0.88 for the preterm children sample and
from 0.43 to 0.84 for the general population sample. The unidimensionality of the separate scales was confirmed by principal
component analysis for both the preterm children sample and the general population sample. Spearman's correlation coefficients
between scales were, on average, low. T-tests showed that the very preterm children, the children with chronic diseases, the less healthy and the less happy children
had lower mean scores on the TAPQOL scales than healthy children, indicating a worse quality of life. This study shows that
the TAPQOL is a reliable and valid parent's perception of HRQoL in preschool children. More research is needed to evaluate
the psychometric performance of the TAPQOL in different clinical populations.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
24.
Teeuw WJ Abhilakh Missier AV Hartman M Ton M Schuller AA Verrips GH Loos BG 《Nederlands tijdschrift voor tandheelkunde》2011,118(4):199-201
In order to gain insight into the degree to which periodontal disease is related to quality of life, research was carried out among 85 patients with moderate or severe periodontal disease in which they were asked to complete the Oral Health Impact Profile-NL49. Their scores on this questionnaire were compared with the scores of 85 control subjects of comparable age and gender. The patients with periodontal disease demonstrated significantly worse scores compared to the control group and patients with severe periodontal disease had scores which were statistically significantly worse than patients with moderate periodontal disease. The results of this study suggest a causal negative association of periodontal disease with quality of life. 相似文献
25.
The methods uses most often for developing and analyzing questionnaires, such as the explorative factor analysis and Cronbach's alpha, presume that psychological constructs are latent (imperceptible) and that there is a reflective-measurement model with the underlying assumption of local independence. Local independence means that the latent variable explains why the variables observed are related. Many questionnaires for measuring oral health-related quality of life are analyzed as if they were based on a reflective-measurement model assuming local independence. This assumption requires these questionnaires to contain solely items reflecting instead of determining oral health-related quality of life. The tenability of this assumption is questionable. 相似文献
26.
27.
A. A. A. van der Linde C. A. W. Lewiszong-Rutjens A. Verrips G. P. J. M. Gerrits 《European journal of pediatrics》2009,168(4):509-511
An 11-year-old girl was admitted with backpain, weight loss, fatigue and behavioural disturbances, starting seven weeks before
admission. Physical examination showed acrodynia, tremor, cachexia, hypertension and extensive gingival ulceration. Routine
laboratory tests were normal, except for a CRP of 98 mg/l. Screening tests for recreational drugs as well as antibody assays
for HIV, hepatitis B and borrelia burgdorferia were negative. Chest X-ray, brain CAT and MRI scan were all normal. Lumbar
puncture didn’t show any abnormalities. Eventually a 24-hour urine test confirmed the diagnosis that was suspected by further
questioning. 相似文献
28.
A. F. J. van Heijst A. Verrips R. A. Wevers J. R. M. Cruysberg W. O. Renier J. J. M. Tolboom 《European journal of pediatrics》1998,157(4):313-316
The clinical spectrum and the effects of treatment over a period of 5 years in five children with cerebrotendinous xanthomatosis
(CTX) are described. In all children biochemical, neuroradiological, and neurophysiological studies were done. CTX was diagnosed
and effects of therapy were evaluated by determination of the serum cholestanol/cholesterol ratio (CCR) and the urinary excretion
of bile alcohols. All children were treated with chenodeoxycholic acid (15 mg/kg/day) in three divided oral doses. Diarrhoea
and juvenile cataract were the main clinical features. Psychomotor retardation, pyramidal and cerebellar signs were also found.
After starting treatment, biochemical abnormalities normalized and diarrhoea disappeared. After 1 year of therapy there was
no further delay in motor development, and in three children the intelligence quotient improved. EEG abnormalities disappeared.
After 5 years of therapy the children are in a stable clinical condition.
Conclusion The clinical, biochemical and neurophysiological abnormalities in five children with CTX showed a remarkable improvement
after starting treatment with chenodeoxycholic acid. The early diagnosis of CTX and the start of treatment with chenodeoxycholic
acid has prevented neurological deterioration for a period of 5 years.
Received: 24 May 1997 / Accepted in revised form: 29 September 1997 相似文献
29.
Kalsbeek H Truin GJ van Rossum CM van Rijkom HM Poorterman JH Verrips GH 《Nederlands tijdschrift voor tandheelkunde》1997,104(10):381-384
In 1995 a dental survey among adults aged 25-54 years was performed in 's-Hertogenbosch (The Netherlands). Aim was to study trends in oral health after 1983, a year in which a similar study was performed in the same city. Caries data were obtained by clinical examination only. The percentage of edentulous persons in the sample decreased with about 50% between 1983 and 1995. In 1995 in all age categories of dentate persons, the mean number of FT was higher, and the mean numbers of DT and MT were lower than in 1983. In persons with a natural dentition under the age of 35 the mean number of DMFT decreased significantly. It was concluded that oral health in adults living in 's-Hertogenbosch, as measured by caries prevalence, treatment level of caries and percentage of edentulous persons, improved significantly between 1983 and 1995. It is supposed that the trends found in 's-Hertogenbosch are indicative of changes in oral health in The Netherlands. 相似文献
30.
Frencken JE Verrips GH Kalsbeek H Filedt Kok-Weimar TL 《Nederlands tijdschrift voor tandheelkunde》1992,99(10):404-407
This study investigates whether the oral health of 5- and 11-year-old children of immigrants from Turkey and Morocco is worse than that of Dutch peer groups in Amsterdam. The outcome variables considered were dmft/s. DMFT/S and the index-components, amount of plaque and number of tooth surfaces sealed (only 11-year olds). The explanatory variable considered was ethnicity (Turkish, Moroccan, Dutch, Surinam and 'Others'). The mean dmfs-score of Turkish and Moroccan 5-year olds was significantly higher than that of Dutch children: 8.1 and 8.2 vs. 3.6, respectively. Also a significant difference in mean DMFS-score between Turkish and Dutch 11-year olds was found; 3.3 vs. 1.7, but not between Moroccan and Dutch children. On average 1.8 surfaces were found sealed in 11-year olds. The mean plaque scores observed in Turkish and Moroccan five- and 11-year olds was significantly higher than in Dutch children. It was concluded that the oral health of Turkish and Moroccan children in Amsterdam was worse than that of their Dutch peer groups and that programs should be developed aimed at improving this situation. 相似文献