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21.
Association of core promoter mutations of hepatitis B virus and viral load is different in HBeAg(+) and HBeAg(-) patients 总被引:2,自引:0,他引:2
Utama A Siburian MD Purwantomo S Intan MD Kurniasih TS Gani RA Achwan WA Arnelis Lelosutan SA Lukito B Harmono T Zubir N Julius Soemohardjo S Lesmana LA Sulaiman A Tai S 《World journal of gastroenterology : WJG》2011,17(6):708-716
AIM:To identify the prevalence of hepatitis B e antigen (HBeAg) and to assess the association of hepatitis B virus (HBV) core promoter mutations and viral load in Indonesian patients.METHODS:Sixty-four patients with chronic hepatitis,65 with liver cirrhosis and 50 with hepatocellular carcinoma were included in this study.HBeAg and hepatitis B e antibody (HBeAb) tests were performed using enzyme-linked immunosorbent assay and the mutations were analyzed by sequencing.Viral load was measured by real-time poly... 相似文献
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Andi Utama Sigit Purwantomo Marlinang Diarta Siburian Rama Dhenni Rino Alvani Gani Irsan Hasan Andri Sanityoso Upik Anderiani Miskad Fardah Akil Irawan Yusuf Wenny Astuti Achwan Soewignjo Soemohardjo Syafruddin AR Lelosutan Ruswhandi Martamala Benyamin Lukito Unggul Budihusodo Laurentius Adrianus Lesmana Ali Sulaiman Susan Tai 《World journal of gastroenterology : WJG》2009,15(32):4028-4036
AIM: To identify the distribution of hepatitis B virus (HBV) subgenotype and basal core promoter (BCP) mutations among patients with HBV-associated liver disease in Indonesia.
METHODS: Patients with chronic hepatitis (CH, n =61), liver cirrhosis (LC, n = 62), and hepatocellular carcinoma (HCC, n = 48) were included in this study. HBV subgenotype was identified based on S or preS gene sequence, and mutations in the HBx gene including the overlapping BCP region were examined by direct sequencing.
RESULTS: HBV genotype B (subgenotypes B2, B3, B4, 85 and B7) the major genotype in the samples, accounted for 75.4%, 71.0% and 75.0% of CH, LC and HCC patients, respectively, while the genotype C (subgenotypes C1, C2 and C3) was detected in 24.6%, 29.0%, and 25.0% of CH, LC, and HCC patients, respectively. Subgenotypes B3 (84.9%) and C1 (82.2%) were the main subgenotype in HBV genotype B and C, respectively. Serotype adw2 (84.9%) and adrq+ (89.4%) were the most prevalent in HBV genotype B and C, respectively. Double mutation (A1762T/G1764A) in the BCP was significantly higher in LC (59.7%) and HCC (54.2%) than in CH (19.7%), suggesting that this mutation was associated with severity of liver disease. The T1753V was also higher in LC (46.8%), but lower in HCC (22.9%) and CH (18.0%), suggesting that this mutation may be an indicator of cirrhosis.
CONCLUSION: HBV genotype B/B3 and C/C1 are the major genotypes in Indonesia. Mutations in BCP, such as A1762T/G1764A and T1753V, might have an association with manifestations of liver disease. 相似文献
METHODS: Patients with chronic hepatitis (CH, n =61), liver cirrhosis (LC, n = 62), and hepatocellular carcinoma (HCC, n = 48) were included in this study. HBV subgenotype was identified based on S or preS gene sequence, and mutations in the HBx gene including the overlapping BCP region were examined by direct sequencing.
RESULTS: HBV genotype B (subgenotypes B2, B3, B4, 85 and B7) the major genotype in the samples, accounted for 75.4%, 71.0% and 75.0% of CH, LC and HCC patients, respectively, while the genotype C (subgenotypes C1, C2 and C3) was detected in 24.6%, 29.0%, and 25.0% of CH, LC, and HCC patients, respectively. Subgenotypes B3 (84.9%) and C1 (82.2%) were the main subgenotype in HBV genotype B and C, respectively. Serotype adw2 (84.9%) and adrq+ (89.4%) were the most prevalent in HBV genotype B and C, respectively. Double mutation (A1762T/G1764A) in the BCP was significantly higher in LC (59.7%) and HCC (54.2%) than in CH (19.7%), suggesting that this mutation was associated with severity of liver disease. The T1753V was also higher in LC (46.8%), but lower in HCC (22.9%) and CH (18.0%), suggesting that this mutation may be an indicator of cirrhosis.
CONCLUSION: HBV genotype B/B3 and C/C1 are the major genotypes in Indonesia. Mutations in BCP, such as A1762T/G1764A and T1753V, might have an association with manifestations of liver disease. 相似文献
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Benyamin B Perola M Cornes BK Madden PA Palotie A Nyholt DR Montgomery GW Peltonen L Martin NG Visscher PM 《European journal of human genetics : EJHG》2008,16(4):516-524
Most information in linkage analysis for quantitative traits comes from pairs of relatives that are phenotypically most discordant or concordant. Confounding this, within-family outliers from non-genetic causes may create false positives and negatives. We investigated the influence of within-family outliers empirically, using one of the largest genome-wide linkage scans for height. The subjects were drawn from Australian twin cohorts consisting of 8447 individuals in 2861 families, providing a total of 5815 possible pairs of siblings in sibships. A variance component linkage analysis was performed, either including or excluding the within-family outliers. Using the entire dataset, the largest LOD scores were on chromosome 15q (LOD 2.3) and 11q (1.5). Excluding within-family outliers increased the LOD score for most regions, but the LOD score on chromosome 15 decreased from 2.3 to 1.2, suggesting that the outliers may create false negatives and false positives, although rare alleles of large effect may also be an explanation. Several regions suggestive of linkage to height were found after removing the outliers, including 1q23.1 (2.0), 3q22.1 (1.9) and 5q32 (2.3). We conclude that the investigation of the effect of within-family outliers, which is usually neglected, should be a standard quality control measure in linkage analysis for complex traits and may reduce the noise for the search of common variants of modest effect size as well as help identify rare variants of large effect and clinical significance. We suggest that the effect of within-family outliers deserves further investigation via theoretical and simulation studies. 相似文献
27.
Lack of inhibitory control has been found to play a decisive role in disordered eating behavior. Behavioral and self-report measures show impulsive tendencies to even occur in non-clinical samples, e.g. restrained eaters. In restrained eaters, these traits interact with high reactivity to food-related cues leading to overeating. The aim of the present study was to investigate if restrained eaters would show this behavioral disinhibition specifically in response to food cues. Participants performed a Go/No-Go-task with stimuli encircled by pictures of high caloric foods or neutral objects. In contrast to our hypotheses, restrained eaters made less commission errors than unrestrained eaters independent of the picture type. Restrained eaters had higher reaction time as compared to unrestrained eaters solely when confronted with food pictures, indicating an attentional bias toward these stimuli. We interpret our results such that the lack of inhibitory control in restrained eaters is situation specific rather than general. We further speculate that exposure to food cues might have increased their behavioral inhibition as in real life situation when they succeed in maintaining their goal of restrained food intake. 相似文献
28.
Shorer Y Biderman A Levy A Rabin S Karni A Maoz B Matalon A 《Annals of family medicine》2011,9(6):549-551
The cornerstone of family medicine is the belief in both the continuity and availability of care. These beliefs are challenged when a doctor leaves his or her clinic because of personal reasons. In the example described in this article, the involvement of colleagues in a Balint group led a doctor to a flash insight into her conflicting feelings related to leaving her clinic. The group process helped her to prepare and deal with her own feelings and needs, as well as those of her patients and staff. Balint groups are a secure place to explore and gain insight into the emotional aspects of attachment and separation of physicians from their patients. 相似文献
29.
Geerinck K Lukito G Snoeck R De Vos R De Clercq E Vanrenterghem Y Degreef H Maes B 《Journal of medical virology》2001,64(4):543-549
Immunocompromised patients may have severe forms of infections. Since there is an increasing number of patients maintained under immunosuppressive therapy, we will be confronted with increasing frequency with these infectious problems. Effective treatments will be of great value. The case is described of a renal transplant with a giant orf lesion, which continued growing instead of regressing spontaneously as is observed usually. The treatment options in such patients are limited. It was decided to treat the patient with the antiviral drug cidofovir (HPMPC, Vistide. Topical cidofovir treatment resulted in complete regression of the lesion. This case is discussed in the context of the known literature on orf (ecthyma contagiosum). 相似文献
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