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1.
Florent Le Ven François Pontana Gilles Barone-Rochette Laurent Macron Jérome Garot Olivier Genée Damien Mandry Luc Christiaens Alain Furber Jean Nicolas Dacher Alexis Jacquier 《Diagnostic and interventional imaging》2021,102(6):337-345
This position paper was intended to update the former consensus between the French Societies of Radiology and Cardiology about the use of stress cardiac magnetic resonance imaging (MRI) in chronic coronary syndrome published in 2009. The Delphi method was used to build the present consensus. This expert panel consensus includes recommendations for indications, procedure with patient preparation, stress inducing drugs, acquisition protocol, interpretation and risk stratification by stress MRI. 相似文献
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Matthan W. A. Caan Pierre‐Louis Bazin Jos P. Marques Gilles de Hollander Serge O. Dumoulin Wietske van der Zwaag 《Human brain mapping》2019,40(6):1786-1798
Quantitative magnetic resonance imaging generates images of meaningful physical or chemical variables measured in physical units that allow quantitative comparisons between tissue regions and among subjects scanned at the same or different sites. Here, we show that we can acquire quantitative T1, T2*, and quantitative susceptibility mapping (QSM) information in a single acquisition, using a multi‐echo (ME) extension of the second gradient‐echo image of the MP2RAGE sequence. This combination is called MP2RAGE ME, or MP2RAGEME. The simultaneous acquisition results in large time savings, perfectly coregistered data, and minimal image quality differences compared to separately acquired data. Following a correction for residual transmit B1+‐sensitivity, quantitative T1, T2*, and QSM values were in excellent agreement with those obtained from separately acquired, also B1+‐corrected, MP2RAGE data and ME gradient echo data. The quantitative values from reference regions of interests were also in very good correspondence with literature values. From the MP2RAGEME data, we further derived a multiparametric cortical parcellation, as well as a combined arterial and venous map. In sum, our MP2RAGEME sequence has the benefit in large time savings, perfectly coregistered data and minor image quality differences. 相似文献
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Afonso Barroso Freitas‐Ferraz William Beaudoin Christian Couture Jean Perron Mario Snchal 《Echocardiography (Mount Kisco, N.Y.)》2019,36(4):787-790
Prosthetic heart valve (PHV) dysfunction is a rare but serious complication whose optimal management may be challenging and requires a multidisciplinary approach. Treatment success ultimately depends on determining the underlying mechanism of valve dysfunction by echocardiography. However, being able to establish the main etiology is not always straightforward. We present a difficult case of obstructive PHV dysfunction and discuss clinical and echocardiographic parameters to help differentiate thrombus from pannus formation. 相似文献
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Eric Therasse Véronique Caty Patrick Gilbert Marie-France Giroux Pierre Perreault Louis Bouchard Vincent L. Oliva Jacques Lespérance Jean Ethier Georges Ouellet Martin Francoeur Serge Cournoyer Gilles Soulez 《Journal of vascular and interventional radiology : JVIR》2021,32(3):350-359.e2
PurposeTo assess whether angioplasty of hemodialysis access (HA) stenosis with a drug-coated balloon (DCB) would prevent restenosis in comparison with plain-balloon percutaneous transluminal angioplasty (PTA).Materials and MethodsThis prospective randomized clinical trial enrolled 120 patients with dysfunctional arteriovenous fistulae (n = 109) and grafts (n = 11), due to a ≥50% stenosis between March 2014 and April 2018. All patients underwent high-pressure balloon angioplasty and were then randomized to either DCB (n = 60) or PTA (n = 60). Patients were followed-up for 1 year, and angiography was performed 6 months after angioplasty. The primary endpoint was the late lumen loss (LLL) at 6 months. Secondary endpoints included other angiographic parameters at 6 months and HA failures, adverse event, and mortality at 12 months. Continuous variables were compared with a Student t-test, and Kaplan-Meier curves were used for freedom from HA failure and for mortality.ResultsLLL in the DCB and in the PTA group were 0.64 mm ± 1.20 and 1.13 mm ± 1.51, respectively (P = .082, adjusted P = .0498). DCB was associated with lower percentage stenosis (54.2% ± 19.3 vs 61.7% ± 18.2; P = .047) and binary restenosis ≥50% (56.5% vs 81.1%; P = .009) than PTA. The number of HA failures after 12 months was lower for DCB than for PTA (45% vs 66.7%; P = .017). Mortality at 12 months was 10% and 8.3% in the DCB and PTA groups, respectively (P = .75).ConclusionsDespite LLL improvement that failed to reach statistical significance, this study demonstrated decreased incidence and severity of restenosis with DCB compared with PTA to treat dysfunctional HA. 相似文献
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Olivier Chiche Josep Rods‐Cabau Francisco Campelo‐Parada Afonso B. Freitas‐Ferraz Ander Regueiro Chekrallah Chamandi Tania Rodriguez‐Gabella Mlanie Ct Robert DeLarochellire Jean‐Michel Paradis Eric Dumont Daniel Doyle Siamak Mohammadi Sbastien Bergeron Philippe Pibarot Jonathan Beaudoin 《Echocardiography (Mount Kisco, N.Y.)》2019,36(4):722-731
10.
Emmanuelle Ranza Anne Guimier Alain Verloes Yline Capri Charles Marques Martine Auclair Michèle Mathieu-Dramard Gilles Morin Julien Thevenon Laurence Faivre Christel Thauvin-Robinet A. Micheil Innes David A. Dyment Corinne Vigouroux Jeanne Amiel 《Clinical genetics》2020,98(1):10-18
Overlapping syndromes such as Noonan, Cardio-Facio-Cutaneous, Noonan syndrome (NS) with multiple lentigines and Costello syndromes are genetically heterogeneous conditions sharing a dysregulation of the RAS/mitogen-activated protein kinase (MAPK) pathway and are known collectively as the RASopathies. PTPN11 was the first disease-causing gene identified in NS and remains the more prevalent. We report seven patients from three families presenting heterozygous missense variants in PTPN11 probably responsible for a disease phenotype distinct from the classical Noonan syndrome. The clinical presentation and common features of these seven cases overlap with the SHORT syndrome. The latter is the consequence of PI3K/AKT signaling deregulation with the predominant disease-causing gene being PIK3R1. Our data suggest that the phenotypic spectrum associated with pathogenic variants of PTPN11 could be wider than previously described, and this could be due to the dual activity of SHP2 (ie, PTPN11 gene product) on the RAS/MAPK and PI3K/AKT signaling. 相似文献