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991.
ZusammenfassungFragestellung In dieser ökologischen Studie wurde untersucht, ob sich sozialräumliche Unterschiede im Hinblick auf die Zahngesundheit bei Grundschulkindern in Stuttgart zeigen.Methoden Verwendet wurde eine Aufteilung von 67 in sich homogenen Sozialräumen in sieben Sozialraumtypen mit ähnlicher sozioökonomischer Struktur. Ausgewertet wurden zahnärztliche Daten von 16755 Grundschulkinder aus dem Schuljahr 1999/2000.Ergebnisse Der Anteil der Kinder mit naturgesunden bleibenden Gebissen differeirte zwischen den Sozialraumtypen von 74,6% bis 88,0% (Durchschnitt: 81,7%). Nicht die Kinder aus Stadtteilen mit dem höchsten Armutspotenzial, sondern die aus innerstädtischen Verdichtungsgebieten erzielten die schlechtesten Ergebnisse. Sie haben doppelt so häufig ein nicht naturgesundes bleibendes Gebiss wie Kinder in guten Wohnlagen und dreimal so oft ein behandlungsbedürftiges Gebiss.Schlussfolgerungen Die zahnärztliche Gruppenprophylaxe sollte in sozial benachteiligten Stadtteilen verstärkt werden.
SummaryObjectives In an ecological study, we investigated differences in dental health among children attending elementary schools in Stuttgart.Methods We used a classification of 67 socially homogeneous districts into seven clusters with comparable socio-economic structures. Public health service dentists data of the school years 1999/2000 on 16755 children were assigned to the seven clusters.Results 81.7% of children had healthy natural permanent teeth (variation among the clusters: 74.6–88.0%). Not children in the poorest areas had the worst results but children living in inner-city areas. They were twice as likely not to have healthy natural teeth and three times as likely to be in need of dental treatment than children living in affluent areas.Conclusions Efforts in prevention of dental health should be strengthened in nurseries and schools in socially deprived areas.

RésuméObjectifs Dans une étude écologique, nous avons étudié les différences en santé dentaire d'élèves fréquentant les écoles primaires de la ville de Stuttgart.Méthodes Nous avons classé 67 secteurs de la ville en sept groupes de structure sociale comparable. Les données obtenues par des dentistes sur 16755 élèves (année scolaire 1999/2000) ont été reparties sur les groupes.Résultats 81,7% des enfants avaient des dents permanentes saines (variation entre les groupes de 74,6 et 88,0%). Ce ne sont pas les enfants des secteurs les plus pauvres qui avaient les plus mauvais résultats mais les enfants du centre-ville. Ils avaient deux fois plus souvent des dents traitées ou à traiter et trois fois plus souvent des dents à traiter que les enfants des quartiers aisés.Conclusions Les efforts préventifs parmi les enfants dans les quartiers défavorisés doivent renforcés.
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992.
993.
PURPOSE: To evaluate the functional effects of ionizing radiation in patients with unresectable pancreatic cancer in the early period after accelerated radiochemotherapy (ART). METHODS AND MATERIALS: To analyze the exocrine component, the amino acid consumption test and fecal elastase 1 were performed in 13 patients immediately before and 4-8 weeks after ART. Pancreatic duct morphology was evaluated before therapy. Weight loss and clinical steatorrhea were recorded. Endocrine parameters were examined according to standardized criteria. RESULTS: The relative change of the amino acid consumption test results and the median elastase concentration was 41.2% and 56.4%, respectively. Five patients still had normal test results after ART and 5 patients developed pathologic values. The median relative weight loss of the total body weight was 7.7% +/- 4.5%. No steatorrhea occurred. Of the 5 patients with normal values, 3 had a mean organ dose of <40 Gy. Of the 5 patients with pathologic values, 4 had a mean organ dose of >41 Gy. The endocrine function measurements remained unchanged. CONCLUSION: Although a nominal reduction of exocrine function parameters occurred in most patients, ART was not necessarily related to a pathologic level in the early period. Diabetes was not established. The functional impairment that was existent in the patient population presumably contributed to the weight loss. Pancreatic enzyme preparations may also play a role in maintaining an anabolic state during and after radiochemotherapy.  相似文献   
994.
PURPOSE: Compared to photon irradiation, carbon ions provide physical and biologic advantages that may be exploited in chordomas and chondrosarcomas. METHODS AND MATERIALS: Between August 1998 and December 2000, 37 patients with chordomas (n = 24) and chondrosarcomas (n = 13) were treated with carbon ion radiotherapy within a Phase I/II trial. Tumor conformal application of carbon ion beams was realized by intensity-controlled raster scanning with pulse-to-pulse energy variation. Three-dimensional treatment planning included biologic plan optimization. The median tumor dose was 60 GyE (GyE = Gy x relative biologic effectiveness). RESULTS: The mean follow-up was 13 months. The local control rate after 1 and 2 years was 96% and 90%, respectively. We observed 2 recurrences outside the gross tumor volume in patients with chordomas. Progression-free survival was 100% for chondrosarcomas and 83% for chordomas at 2 years. Partial remission after carbon ion radiotherapy was observed in 6 patients. Treatment toxicity was mild. CONCLUSION: These are the first data demonstrating the clinical feasibility, safety, and effectiveness of scanning beam delivery of ion beams in patients with skull base tumors. The preliminary results in patients with skull base chordomas and low-grade chondrosarcomas are encouraging, although the follow-up was too short to draw definite conclusions concerning outcome. In the absence of major toxicity, dose escalation might be considered.  相似文献   
995.
The ability to move two fingers at the same time was measured in young and older adults. This study measured the accuracy with which 45 normally developing children (23 boys, 22 girls; mean ages 8.4 and 8.3 years respectively) and 49 young adults (25 males, 24 females; mean ages 19.8 and 20.5 years respectively) could synchronize movements of two fingers when making or breaking contact with circular metal discs. A portable electronic instrument displayed the timings. To measure 'in-phase' skills, attempts were made to contact both discs simultaneously with the two index fingers or to break both contacts; asynchrony was only a few milliseconds and differences between children and adults were insignificant. To measure 'antiphase' skills, attempts were made with the index and middle fingers to make contact simultaneously with one disc while breaking contact with the other; asynchrony was larger. Usually one contact was made and later the other was broken; for a while both fingers touched (overlap). Rarely one contact was broken before the other was made; for a while neither finger touched (gap). Boys' periods of overlap were longer than those of men and women; on both sides these differences were highly significant statistically (p<0.0001). Boys' errors on the right side were also significantly greater than those of girls. On both sides, mean errors of girls were higher than those of men and women: three of the four sets of data reached statistical significance. While boys' performance improved with age, that of girls was static. Children achieved an essentially adult level of control for in-phase skills but with antiphase skills the children, and especially the boys, had clearly poorer performances.  相似文献   
996.
Sarcoidosis is one in a heterogeneous family of granulomatous disorders. The clinical manifestations of sarcoidosis can vary widely, depending on the patient and the tissues involved. Recent advances in our understanding of the immunologic steps leading to granuloma formation and persistence have yet to translate into more effective care for patients with this disease. This review discusses the immunology of granuloma formation and systemic disease, the various nonpulmonary expressions of the clinical disease, and the treatment options available to the practicing physician.  相似文献   
997.
998.
Miescher's granulomatous macrocheilitis (cheilitis granulomatosa) is a mono- symptomatic presentation of Melkersson-Rosenthal Syndrome which is characterized by granulomatous swelling of the lips, and can affect both children and adults. We report the successful outcome following lip reduction surgery on an 11-year-old boy. We suggest that surgery may have a role in the management of those patients who have failed to respond to medical treatment.  相似文献   
999.
BACKGROUND: Patients with Parkinson disease characteristically exhibit an increased echogenicity of the substantia nigra (SN) on transcranial sonography, a new neuroimaging technique. The same echo feature of the SN can be identified in 9% of healthy adults. OBJECTIVE: To evaluate the relevance of the echogenic SN in healthy adults. DESIGN: In the first part of the study, 10 healthy subjects younger than 40 years with a distinct SN hyperechogenicity underwent extensive neurological, motor, neuropsychological, and fluorine 18-dopa positron emission tomographic ([18F]-dopa PET) examinations. Results were compared with those of 10 subjects with a low echogenic SN. In the second part of the study, the postmortem brains of 20 patients without extrapyramidal disorders during their lifetime were sonographically examined with a particular focus on SN echogenicity. Subsequently, one half of the brain was prepared for heavy metal analysis, the other for a histological examination. RESULTS: Healthy subjects with SN hyperechogenicity exhibited a significant reduction of the [18F]-dopa uptake, especially in the putamen (Wilcoxon matched pair test: left side, P =.006; right side, P =.009), whereas their neuropsychological and motor performance were normal. Postmortem studies showed that the echogenicity of the SN correlated with its iron content. CONCLUSIONS: Increased echogenicity of the SN, characteristically seen in Parkinson disease, is related to a functional impairment of the nigrostriatal system (even in young healthy adults) that can be revealed by [18F]-dopa PET studies. Substantia nigra hyperechogenicity is related to a higher tissue iron level, which is known to enhance the cells' generation of reactive oxygen specimens. Therefore, we hypothesize that transcranial sonography may identify a susceptibility marker for the development of nigral injury that can be detected early in life, prior to the onset of Parkinson disease.  相似文献   
1000.
Serological tests are commonly employed to aid the diagnosis of Streptococcus pyogenes infections, particularly when non-suppurative sequelae are suspected. Conventional laboratory practice is to measure antibody levels to various combinations of the extracellular group A Streptococcus (GAS) antigens streptolysin O (SLO), DNase B, streptokinase and hyaluronidase. Antibody to the extracellular cysteine proteinase streptococcal pyrogenic exotoxin B (SPE B) and its precursor zymogen is also produced in response to GAS infections. An indirect hemagglutination test for antibody to zymogen/SPE B was established and evaluated in serum samples from 168 patients with proven (n = 27) or suspected GAS (n = 141) infections, which were also screened for antibodies using the 4 conventional tests. For comparison, sera from 56 patients infected with a variety of other pathogens, as well as sera from 16 patients infected with either S. agalactiae or S. pneumoniae and 34 sera from healthy subjects, were tested. Statistical analysis confirmed that antibody to zymogen/SPE B is a serological marker that can discriminate GAS infections. It can be ranked with the anti-SLO titer, currently the most widely used test, as a marker of an antecedent GAS infection.  相似文献   
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