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61.
Charlotte A Jones Shefina Mawani Kathryn M King Selina Omar Allu Megan Smith Sailesh Mohan Norman RC Campbell 《BMC public health》2011,11(1):24
Background
Indo-Asians in Canada are at increased risk for cardiovascular diseases. There is a need for cultural and language specific educational materials relating to this risk. During this project we developed and field tested the acceptability of a hypertension public education pamphlet tailored to fit the needs of an at risk local Indo-Asian population, in Calgary, Alberta, Canada. 相似文献62.
Prostatic evaluation by transrectal sonography with histopathologic correlation: the echopenic appearance of early carcinoma 总被引:6,自引:0,他引:6
Fifty-two patients with clinical stage A and B carcinomas of the prostate were imaged by ultrasound (US) transrectally with a 5-MHz linear array transducer and transabdominally with a 3-MHz sector scanner prior to radical prostatectomy. The fresh specimens of 44 prostate glands were scanned in a water bath with a 5-MHz linear array transducer in multiple planes. In all cases, histopathologic correlation was obtained. Prostatic carcinoma presented as an echopenic lesion in 54% of the specimens, as a slightly hypoechoic area in 22%, and could not be identified in 24% because of its isoechoic characteristics. In contrast to many previous reports, no instance of echogenic cancer was observed. 相似文献
63.
Tartrate-resistant acid phosphatase (TRAcP) is used as a marker for osteoclasts, which are believed to be derived from phagocytic cells or phagocyte stem cell precursors. To further investigate the relationship between monocytic phagocytes and osteoclasts, acid phosphatase (AcP) activity was measured by three different techniques in human peripheral blood monocytes, monocyte-derived macrophages, and the U937 cell line. We found that cytochemistry and gel electrophoresis led to similar results, but that the colorimetric assay was inconsistent. Normal human peripheral monocytes expressed both tartrate-sensitive and -resistant AcP. In culture these cells formed polykaryons and expressed TRAcP activity that was further identified as an isoenzyme associated with bone tissue. In contrast, the U937 cells did not express TRAcP activity as measured by gel electrophoresis. Both U937 cells and monocytes possess material that interferes with interpretation of the colorimetric assay of AcP. The presence of TRAcP in monocyte-derived macrophages further supports the relationship between phagocytic cells and bone osteoclasts. 相似文献
64.
65.
D R Weinberger R Gibson R Coppola D W Jones S Molchan T Sunderland K F Berman R C Reba 《Archives of neurology》1991,48(2):169-176
A high-affinity muscarinic receptor antagonist, 123IQNB (3-quinuclidinyl-4-iodobenzilate labeled with iodine 123), was used with single photon emission computed tomography to image muscarinic acetylcholine receptors in 14 patients with dementia and in 11 healthy controls. High-resolution single photon emission computed tomographic scanning was performed 21 hours after the intravenous administration of approximately 5 mCi of IQNB. In normal subjects, the images of retained ligand showed a consistent regional pattern that correlated with postmortem studies of the relative distribution of muscarinic receptors in the normal human brain, having high radioactivity counts in the basal ganglia, occipital cortex, and insular cortex, low counts in the thalamus, and virtually no counts in the cerebellum. Eight of 12 patients with a clinical diagnosis of Alzheimer's disease had obvious focal cortical defects in either frontal or posterior temporal cortex. Both patients with a clinical diagnosis of Pick's disease had obvious frontal and anterior temporal defects. A region of interest statistical analysis of relative regional activity revealed a significant reduction bilaterally in the posterior temporal cortex of the patients with Alzheimer's disease compared with controls. This study demonstrates the practicability of acetylcholine receptor imaging with 123IQNB and single photon emission computed tomography. The data suggest that focal abnormalities in muscarinic binding in vivo may characterize some patients with Alzheimer's disease and Pick's disease, but further studies are needed to address questions about partial volume artifacts and receptor quantification. 相似文献
66.
V I Cohen W J Rzeszotarski R E Gibson L H Fan R C Reba 《Journal of pharmaceutical sciences》1989,78(10):833-836
rac-4-Nitrobenzilic acid was synthesized and resolved with quinidine and quinine to give the corresponding (R)- and (S)-salts. The resolved diastereomeric salts were converted to (R)- and (S)-4-nitrobenzilic acids and subsequent esterification gave their corresponding ethyl esters. Transesterification with (R)-(-)-3-quinuclidinol afforded (R)-(-)-1-azabicyclo[2.2.2]oct-3-yl-(R)-(+)-alpha-hydroxy-alpha- (4-nitrophenyl)-alpha-phenyl acetate and (R)-(-)-1-azabicyclo[2.2.2]oct-3-yl-(S)-(-)-alpha-hydroxy- alpha-(4-nitrophenyl)-alpha-phenyl acetate. After hydrogenation, the (R,R)- and (R,S)-amines were converted to the respective triazene derivatives. The triazene derivatives reacted with sodium [125I]iodide to give (R)-(-)-1-azabicyclo[2.2.2]oct-3-yl-(R)-(+)- alpha-hydroxy-alpha-(4-[125I]iodophenyl)-alpha-phenyl acetate and (R)-(-)-1-azabicyclo[2.2.2]oct-3-yl-(S)-(-)-alpha-hydroxy- alpha-(4-[125I]iodophenyl)-alpha-phenyl acetate. The evaluation of their affinities to muscarinic acetylcholine receptors (MAcChR) shows that (R)-(-)-1-azabicyclo[2.2.2]oct-3-yl-(S)-(-)-alpha-hydroxy-alpha-(4- [125I]iodophenyl)-alpha-phenyl acetate exhibits an affinity for the MAcChR from corpus striatum that is approximately threefold lower than that of (R)-(-)-1-azabicyclo[2.2.2]oct-3-yl-(R)-(+)-alpha-hydroxy-alpha-(4- [125I]iodophenyl)-alpha-phenyl acetate. 相似文献
67.
K Yokoyama J C Reynolds C H Paik V K Sood P J Maloney S M Larson R C Reba 《Journal of nuclear medicine》1990,31(2):202-210
Hydroxylapatite high performance liquid chromatography was used to prepare two fractions from 125I- Fab 96.5. One fraction (peak 1) had relatively low immunoreactivity (25-38%) and the second fraction (peak 2) had high immunoreactivity (70-81%). Scatchard analysis showed similar affinity constants for the two preparations (2.9 x 10(9) M-1 for peak 1; 3.4 x 10(9) M-1 for peak 2). In biodistribution and imaging studies in athymic mice with human melanoma (FEMX-II) xenografts the high immunoreactivity preparation rapidly cleared from the blood and nontumor organs while retention of radioactivity in the tumor was prolonged. The low immunoreactivity preparation, had slower blood and nontumor organ clearance but faster tumor clearance than the high immunoreactivity fraction. Thus, in these studies highly immunoreactive antibody gave higher tumor to nontumor ratios and enhanced the target to nontarget image contrast. 相似文献
68.
L Cigliano†‡ B Maresca§ A Salvatore† M Nino§ G Monfrecola§ F Ayala§ A Carlucci† RC Pugliese§ C Pedone† P Abrescia† 《Journal of the European Academy of Dermatology and Venereology》2008,22(4):417-425
Objective The aim of this work was to assess whether psoriasis is associated with phenotype prevalence and altered activity of haptoglobin (Hpt). Background Hpt is a plasma acute‐phase glycoprotein, displaying in humans three phenotypes. Phenotype prevalence or structure modification of Hpt was associated with several diseases. The Hpt main function is to bind and carry to the liver free haemoglobin for degradation and iron recycling. Hpt was recently found able to bind the apolipoprotein A‐I (ApoA‐I), thus impairing its stimulation on the activity of the enzyme lecithin‐cholesterol acyl‐transferase (LCAT). Study design Hpt was isolated from patients with psoriasis vulgaris, and its activity in haemoglobin or ApoA‐I binding and LCAT inhibition was compared with that of normal protein. Methods Two affinity chromatography steps, the first using resin‐coupled haemoglobin and the second anti‐Hpt antibodies, were used to purify Hpt. The protein phenotype was assessed by electrophoresis. Binding experiments were performed by Enzyme‐linked immunosorbent assay with stationary haemoglobin or ApoA‐I, Hpt in solution and anti‐Hpt antibodies for detection of bound Hpt. Standard LCAT assays were carried out in the presence of Hpt purified from patients or healthy subjects. Results Phenotype prevalence of Hpt in psoriasis was not found. After affinity chromatography by haemoglobin, albumin and ApoA‐I were routinely found heavily contaminating only Hpt from normal subjects. Isolated Hpt from patients had lower activity than normal protein in both haemoglobin binding and LCAT inhibition. Conclusions In psoriasis, Hpt displays some structure modification(s), which might be associated with the protein function in the disease. 相似文献
69.
Osteomyelitis: detection with US 总被引:2,自引:0,他引:2
To evaluate the role of ultrasound (US) in the detection of osteomyelitis, the authors prospectively studied 48 patients clinically suspected of having osteomyelitis. A sonographic diagnosis was made if fluid was seen directly in contact with bone, without intervening soft tissues. Twelve of the 48 patients were subsequently found to have osteomyelitis. In 10 of them, US demonstrated abnormal fluid adjacent to the bone. This fluid was thought to represent an inflammatory exudate dissecting in a subperiosteal and/or extraperiosteal location. Eight of the 48 patients had soft-tissue fluid collections. The rest of the patients either had no abnormalities or had cellulitis. The authors conclude that US can be useful in the detection of osteomyelitis. 相似文献
70.
Growth hormone therapy for protein catabolism 总被引:5,自引:0,他引:5
GH and IGF-I have shown remarkable consistency of effect in a wide range of
catabolic conditions. Doses of around 10 IU/m2/day of GH and 80
micrograms/kg/day of IGF-I over short periods of time can improve net
protein synthesis and preserve lean body mass. Most studies have reported
metabolic endpoints, but favorable clinical effects have included decreased
hospital stay and mortality in burns, improved respiratory muscle function
in COAD, preserved grip strength post- operatively, and improvements in
cardiac and bowel failure. Adverse effects of GH treatment are uncommon and
usually related to glycaemic control. GH and IGF-I have differential
effects on insulin concentrations--increasing or decreasing concentrations,
respectively. The hypoglycaemic effects of IGF-I are dependent on route of
administration and are avoided by subcutaneous delivery. Occasional
patients have needed to discontinue GH treatment due to hyperglycaemia,
although the anabolic action of GH may be partially mediated by increased
insulin levels. The co-administration of GH and IGF-I has theoretical
advantages by both increasing IGF binding-protein concentrations and
balancing glycaemic control. An initial study with combination therapy in
calorically-restricted volunteers has shown anabolic effects greater than
with either agent alone. This approach requires further study in catabolic
patients. There is a need for large, well-designed trials with clinical
rather than purely metabolic end-points, and some of these are already
underway. Should these studies confirm the early findings, financial
considerations will become paramount, although it remains possible that
treatment may be self-financing if lengths of hospital admissions are
shortened.
相似文献