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91.
Magnetic resonance imaging of the brainstem: normal structure and basic functional anatomy 总被引:2,自引:0,他引:2
Flannigan BD; Bradley WG Jr; Mazziotta JC; Rauschning W; Bentson JR; Lufkin RB; Hieshima GB 《Radiology》1985,154(2):375-383
Normal structure and basic functional anatomy of the brainstem were studied using anatomic sections obtained with a cryomicrotome whole-organ sectioning technique. Major tracts and nuclei were identified and their function summarized. Magnetic resonance imaging of the brainstem was performed on 10 normal volunteers. By comparing these images with the corresponding anatomic sections, normal structures, including major tracts and nuclei, were identified. Knowledge of location and function of clinically important brainstem nuclei and tracts is necessary for optimal magnetic resonance image interpretation. 相似文献
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Radotra B Apostolopoulos V Sandison A Hatfield EC Mendoza N Moss J Mehta A Glaser M Meeran K Roncaroli F 《Endocrine pathology》2010,21(4):266-273
A 29-year-old Ethiopian man presented with marked bilateral visual loss, headache, hypopituitarism and significant hyponatraemia (115 mmol/L). A brain MRI scan demonstrated a large, lobulated, sellar and suprasellar mass, elevating the floor of the 3rd ventricle and compressing the optic chiasm. The patient underwent a transphenoidal resection of the mass followed by a craniotomy 10 days later. Histological examination demonstrated a Hyams’ grade III neuroblastoma with ectopic expression of vasopressin. He underwent fractionated radiotherapy at a dose of 60 Gy in 30 fractions. Fourteen months after the onset, he is well with no neuroimaging evidence of tumour recurrence. His serum and urine sodium are completely normalised. 相似文献
94.
A 7-year-old boy presented with midline swelling in the neck. On fine-needle aspiration cytology it was diagnosed as papillary carcinoma of the thyroid. The patient underwent total thyroidectomy. Histopathological examination, immunohistochemistry and electron microscopy revealed the presence of two intermingled components: medullary carcinoma and papillary carcinoma. One of the submandibular lymph nodes had metastasis of both the components. The case was diagnosed as 'mixed medullary and follicular cell carcinoma' with papillary carcinoma pattern and lymph node metastasis. Mixed medullary and follicular cell carcinoma with intermingling of medullary and papillary carcinoma components is a rare tumor. In adults, only eight such cases with lymph node metastasis have been published. To the best of the authors' knowledge no pediatric case has previously been reported in the English-language literature. 相似文献
95.
Raised intracellular iron has been identified as a potential aetiological factor in the development of several epithelial malignancies, including those of the gastrointestinal tract. The mechanism behind this increase is thought to include disorders of iron uptake and storage. Several iron chelators have been identified as potential anti-tumour agents, with much work undertaken to ascertain the exact mode of action. Despite this, there is little known about the role that these drugs play in the cellular iron metabolism of oesophageal cancer. Consequently, the present study looks to review the relationship of two clinically important iron-chelating agents, deferoxamine and deferasirox, on cellular iron uptake and storage in oesophageal squamous and adenocarcinoma. This provides important evidence for the debate about the role these agents have in the clinical management of such tumours.
Linked Article
This article is a commentary on Ford et al., pp. 1316–1328 of this issue. To view this paper visit http://dx.doi.org/10.1111/bph.12045 相似文献96.
Visceral botryomycosis is rare, and documented sites are lung, brain, kidney, liver and prostate. This report describes a rare autopsy case of disseminated visceral botryomycosis, with bulky, grape-like botryomycotic vegetations in the heart, and similar abscesses in the lungs and bone marrow. This is the first such report in the literature to the best of our knowledge. 相似文献
97.
Wong KT Ng KY Ong KC Ng WF Shankar SK Mahadevan A Radotra B Su IJ Lau G Ling AE Chan KP Macorelles P Vallet S Cardosa MJ Desai A Ravi V Nagata N Shimizu H Takasaki T 《Neuropathology and applied neurobiology》2012,38(5):443-453
K. T. Wong, K. Y. Ng, K. C. Ong, W. F. Ng, S. K. Shankar, A. Mahadevan, B. Radotra, I. J. Su, G. Lau, A. E. Ling, K. P. Chan, P. Macorelles, S. Vallet, M. J. Cardosa, A. Desai, V. Ravi, N. Nagata, H. Shimizu and T. Takasaki (2012) Neuropathology and Applied Neurobiology 38, 443–453 Enterovirus 71 encephalomyelitis and Japanese encephalitis can be distinguished by topographic distribution of inflammation and specific intraneuronal detection of viral antigen and RNA Aims: To investigate if two important epidemic viral encephalitis in children, Enterovirus 71 (EV71) encephalomyelitis and Japanese encephalitis (JE) whose clinical and pathological features may be nonspecific and overlapping, could be distinguished. Methods: Tissue sections from the central nervous system of infected cases were examined by light microscopy, immunohistochemistry and in situ hybridization. Results: All 13 cases of EV71 encephalomyelitis collected from Asia and France invariably showed stereotyped distribution of inflammation in the spinal cord, brainstem, hypothalamus, cerebellar dentate nucleus and, to a lesser extent, cerebral cortex and meninges. Anterior pons, corpus striatum, thalamus, temporal lobe, hippocampus and cerebellar cortex were always uninflamed. In contrast, the eight JE cases studied showed inflammation involving most neuronal areas of the central nervous system, including the areas that were uninflamed in EV71 encephalomyelitis. Lesions in both infections were nonspecific, consisting of perivascular and parenchymal infiltration by inflammatory cells, oedematous/necrolytic areas, microglial nodules and neuronophagia. Viral inclusions were absent. Conclusions: Immunohistochemistry and in situ hybridization assays were useful to identify the causative virus, localizing viral antigens and RNA, respectively, almost exclusively to neurones. The stereotyped distribution of inflammatory lesions in EV71 encephalomyelitis appears to be very useful to help distinguish it from JE. 相似文献
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Jialiang Guo MD Yali Zhou BD Meishuang Shang BD Xiaojuan Zhang MD Zhiyong Hou MD Weichong Dong MD Yingze Zhang BD 《Orthopaedic Surgery》2023,15(8):2144-2151