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1.
Separate visual pathways for perception of actions and objects:
evidence from a case of apperceptive agnosia
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C. T. Ferreira M. Ceccaldi B. Giusiano M. Poncet 《Journal of neurology, neurosurgery, and psychiatry》1998,65(3):382-385
Recognition of different kinds of visual stimuli was studied ina patient who acquired apperceptive visual agnosia after a bilateraloccipitotemporal lesion which partially spared the primary visualcortex. Impairment in recognising static objects perceived visuallysharply contrasts with the relatively well preserved ability torecognise objects from gestures illustrating their use, and torecognise actions shown in line drawings. It is suggested that theoccipitoparieto-frontal pathway is involved in the recognition ofactions, and in the recognition of objects when sensorimotor experienceis evoked.
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Edoardo Maria Muttillo Tristan Dégot Matthieu Canuet Marianne Riou Benjamin Renaud-Picard Sandrine Hirschi Blandine Guffroy Romain Kessler Anne Olland Pierre-Emmanuel Falcoz Patrick Pessaux Emanuele Felli 《Transplantation proceedings》2021,53(2):692-695
BackgroundDiffuse large B-cell lymphoma (DLBCL) is the most common subtype of non–Hodgkin lymphoma in the posttransplant setting. Treatment is based on chemotherapy; surgery is still debated and should be performed in very select cases.MethodsWe observed 2 patients out of 300 who underwent lung transplantation in the Nouvel Hopital Civil between 2013 and 2019 with primary hepatic lymphoma. Chemotherapy with a rituximab-cyclophosphamide, hydroxydaunorubicin, vincristine, prednisone protocol was performed in all patients. Mycophenolate mofetil was interrupted before treatment, and everolimus was introduced after chemotherapy by associating tacrolimus withdrawal.ResultsOne patient showed complete remission; after 7 years, no recurrence has been noticed. The second is still undergoing chemotherapy with no signs of disease progression.ConclusionsDLBCL risk is higher in solid organ transplant recipients than in the general population. Primary hepatic lymphoma diagnosis is often difficult and based on histologic findings after initial clinical and radiological suspicion of primary or secondary liver neoplasia. Diagnosis is challenging because no clinical, radiological, or biological features exist. Biopsy is always indicated for histologic confirmation. Chemotherapy is the mainstay of therapy, but surgery may be indicated in very select patients. 相似文献
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Progressive focal cortical atrophies are degenerative conditions characterised by the insidious onset and gradual exacerbation of an impairment in a single cognitive domain related to circumscribed cerebral atrophy. Several focal cortical syndromes with deficits in the realm of cognition are reviewed: progressive impairment of language (primary progressive aphasia), speech (progressive anarthria), semantic memory (semantic dementia), episodic memory (pure progressive amnesia), vision (progressive perceptual or visuo-spatial deficits) and gesture (progressive apraxia). These conditions are histologically heterogeneous and can be associated with focal non-specific neuronal loss and gliosis with some spongiform changes (non-specific lesions), pathological features of Pick's disease (inclusion bodies and swollen neurones) or Alzheimer's disease (AD) (senile plaques and neurofibrillary tangles). A relationship between neuropsychological profiles and lesional types emerges from this review of the literature. Non-fluent primary progressive aphasia, semantic dementia and progressive anarthria are usually associated with non-specific lesions and Pick-type pathology. Progressive disorders of episodic memory and progressive visuo-spatial deficits are more often related to AD. If adequate clinical characterisation can determine the underlying disorder, it appears even more important to establish the neuropsychological profile in patients with cortical degenerative disease. Progressive deficits of only one domain of cognition may well be due to preferential involvement of anatomically and functionally defined neural systems and could therefore be considered as "system atrophies". There remains no doubt that these syndromes are particularly well suited models for studies on the relationship between cerebral functions and their neural substrate. 相似文献
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J. Ceccaldi 《Psycho-Oncologie》2016,10(4):238-242
This presentation about uncertainty and healing was given in March 2015. Are the facts described by the physician in charge enough to be sure about the reality of a cure? Is the conviction shared by someone about his own healing sufficient to demonstrate the certainty of his cure? Both of them are probably necessary: two kinds of consent at least are analyzed and discussed forwards. 相似文献
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Dennis J Johnson CY Adediran AS de Andrade M Heit JA Morange PE Trégouët DA Gagnon F 《Blood》2012,119(10):2392-2400
The endothelial protein C receptor (EPCR) limits thrombus formation by enhancing activation of the protein C anticoagulant pathway, and therefore may play a role in the etiology of thrombotic disorders. The rs867186 single-nucleotide polymorphism in the PROCR gene (g.6936A > G, c.4600A > G), resulting in a serine-to-glycine substitution at codon 219, has been associated with reduced activation of the protein C pathway, although its association with thrombosis risk remains unclear. The present study is a highly comprehensive systematic review and meta-analysis, including unpublished genome-wide association study results, conducted to evaluate the evidence for an association between rs867186 and 2 common thrombotic outcomes, venous thromboembolism (VTE) and myocardial infarction (MI), which are hypothesized to share some etiologic pathways. MEDLINE, EMBASE, and HuGE Navigator were searched through July 2011 to identify relevant epidemiologic studies, and data were summarized using random-effects meta-analysis. Twelve candidate genes and 13 genome-wide association studies were analyzed (11 VTE and 14 MI, including 37,415 cases and 84,406 noncases). Under the additive genetic model, the odds of VTE increased by a factor of 1.22 (95% confidence interval, 1.11-1.33, P < .001) for every additional copy of the G allele. No evidence for association with MI was observed. 相似文献
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