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In present investigation, etiopathological characterization of upper gastrointestinal tract (GIT) tumours of cattle and buffaloes was undertaken. A total of 27 GIT wart‐like lesions in rumen, reticulum, mouth and oesophagus of cattle and buffaloes revealed the presence of small nodular to larger spherical or slender growths with thin base present on mucosa and ruminal pillar. Histopathologically, these cases were diagnosed as fibropapilloma/papilloma. This is the first world record on ruminal papillomatosis in buffaloes. Ruminal warts of cattle and buffaloes revealed the presence of BPV‐5, ‐1 & ‐2, which is the first report of presence of these BPVs in the ruminal warts from India. Quantitative real‐time PCR revealed that DNA samples of different GIT wart‐like lesions contained varying amount of BPV DNA copy numbers. Immunohistochemistry revealed that the PCNA and Ki67 immunopositivity was present in the basal and spinosum layer of the fibropapilloma/papilloma, indicating these as the cellular proliferation site. In conclusion, the present investigation revealed that BPV‐5, ‐1 & ‐2 are associated with certain ruminal wart‐like lesions/growths in cattle and buffaloes, and the basal and spinosum layer of the ruminal fibropapilloma/papilloma were cellular proliferation sites.  相似文献   
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T‐2 toxin is the most toxic among mycotoxins and poses a potential health hazard for both humans and animals. At high doses, T‐2 toxin can cause shock‐like syndrome that can result in death. We evaluated the effect of time course and route of exposure on hepatic oxidative damage in mice and it is only such study so far to compare the effects of dermal and subcutaneous exposure of T‐2 toxin. Mice were exposed to 1 LD50 of T‐2 toxin either by percutaneous (5.94 mg/kg body weight) or subcutaneous (1.54 mg/kg body weight) route and sacrificed at 0, 1, 3, and 7 days postexposure. Analysis of a number of serum biochemical variables, antioxidant enzymes activity, gene and protein expression by immunoblot assay showed time and route dependent effects of T‐2 induced hepatic oxidative damage. Time dependent increase in protein carbonyl content and protein oxidation was seen in serum and liver. Results of our study may provide possible mechanism for developing medical countermeasures against T‐2 toxin. © 2013 Wiley Periodicals, Inc. Environ Toxicol 30: 64–73, 2015.  相似文献   
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Cypermethrin is a synthetic pyrethroid insecticide used worldwide in agriculture, home pest control, disease vector control, and food safety. It accumulates in soil. Therefore, traces of cypermethrin may frequently appear in vegetables grown in contaminated soil. There is a push now to develop biomarkers as early warning indicators of environmental pollution. In this study, DNA damage (tail DNA%, tail length, and olive tail moment), the micronucleus, neutral red retention (NRR) time, and pinocytic adherence ability of coelomocytes were investigated in Pheretima peguana earthworms exposed to cypermethrin in filter paper tests. The NRR time of earthworm coelomocytes decreased significantly at a concentration of 3.5 × 10?3 µg · cm?2 (1/100 LC50) after 48 h exposure, with a highly negative correlation with cypermethrin concentration. Pinocytic adherence ability of coelomocytes also declined significantly at a cypermethrin concentration of 3.5 × 10?2 µg · cm?2 (1/10 LC50). The DNA damage to earthworm coelomocytes (tail DNA%, tail length, and olive tail moment) increased considerably at the highest concentration (3.5 × 10?1 µg · cm?2) although the correlation between tail DNA% and cypermethrin concentration was low. Thus, physiological biomarkers were more sensitive than the genotoxic effects in earthworms exposed to commercial cypermethrin. Although a suite of earthworm biomarkers could be used to evaluate cypermethrin terrestrial pollution, the NRR test is easier to conduct and a more sensitive indicator. © 2013 Wiley Periodicals, Inc. Environ Toxicol 30: 597–606, 2015.  相似文献   
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张昆 《现代药物与临床》2015,30(9):1133-1136
目的观察喜炎平注射液联合小儿豉翘清热颗粒治疗儿童急性上呼吸道感染的临床疗效和安全性。方法选取2015年3月—2015年4月汉中市中心医院儿科进行治疗的急性上呼吸道感染患儿120例,随机分为对照组和治疗组,每组患儿各60例。对照组给予小儿豉翘清热颗粒,开水冲服,3次/d,饭后服用,不同年龄组用量不同,6个月~1岁患儿:1~2 g/次;1~3岁患儿:2~3 g/次;4~6岁患儿:3~4 g/次;7~9岁患儿:4~5 g/次。治疗组患者采用喜炎平注射液静脉滴注,1次/d,0.2~0.4 m L/kg,小儿豉翘清热颗粒的用法、用量同对照组。两组患儿均连续治疗5 d。观察两组的临床疗效,同时比较两组治疗前后主要症状、体征消失时间以及血清学指标。结果治疗后治疗组和对照组患儿总有效率分别为96.67%、75.00%,两组总有效率比较差异具有统计学意义(P0.05)。治疗组患儿退热时间、腹泻消失时间、呕吐消失时间、咳嗽消失时间、鼻塞消失时间和咽痛消失时间均显著低于对照组患儿,两组比较差异均具有统计学意义(P0.05)。治疗后两组患儿hs-CRP、TNF-α和IL-6较治疗前显著改善,治疗前后比较差异具有统计学意义(P0.05);治疗后治疗组患儿hs-CRP、TNF-α和IL-6较对照组患儿有显著改善,两组比较差异具有统计学意义(P0.05)。两组患儿在治疗期间均未观察到不良反应。结论喜炎平注射液联合小儿豉翘清热颗粒治疗儿童急性上呼吸道感染临床疗效好,起效快,未发现不良反应,具有一定的临床推广应用价值。  相似文献   
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As the detection rate of HPV‐DNA in anal carcinoma commonly exceeds 90%, a comparison between sole HPV‐positive and HPV‐negative cancers with respect to treatment response following chemoradiotherapy (CRT) and long‐term oncological outcome is challenging. Against this background, we aimed to assess HPV types and HPV DNA load in formalin‐fixed paraffin‐embedded tissue (FFPE) of 95 patients treated with standard CRT for anal cancer to correlate viral load (≤/> median) with local failure, distant metastases, cancer‐specific (CSS) and overall survival (OS) rates. Various clinicopathologic parameters and the immunohistochemical marker p16INK4a were evaluated for any correlation with HPV16 DNA load and were included in uni‐ and multivariate analyses. The overall prevalence of HPV DNA was 95.8% with HPV16 monoinfection being the most commonly encountered HPV type (78.9%), followed by HPV16 and 31, 35, 39, 44, 58, 66 and 81 dual infection in 9 patients (9.5%). HPV16 DNA load was significantly associated with p16INK4a expression (p = 0.001). Patients with HPV16 DNA load ≤ median and low p16INK4a expression showed significantly worse local control (HPV16 DNA load: univariate p = 0.023, multivariate p = 0.042; p16INK4a: univariate p = 0.021), and OS (HPV16 DNA load: univariate p = 0.02, multivariate p = 0.03). Moreover, a combined HPV16 DNA load and p16INK4a variable revealed a significant correlation to decreased local failure, and increased CSS and OS (p = 0.019, p = 0.04 and p = 0.031). In conclusion, these data indicate that HPV16 DNA load and p16INK4a expression are significant prognostic factors for local tumor control and overall survival of patients with anal SCC following CRT.  相似文献   
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MicroRNAs (miRNAs) have been implicated in colorectal cancer (CRC) development and associated with prognostic indicators such as disease stage and survival. Prognostic associations are often based on few individuals and imprecise. In this study, we utilize population‐based data from 1,141 CRC cases to replicate previously reported associations between 121 miRNAs and disease stage and survival. The Agilent Human miRNA Microarray V19.0 was used to generate miRNA data following a stringent quality control protocol. Assessment of survival was done using Cox Proportional Hazard models adjusting for age, disease stage and tumor molecular phenotype. Five miRNAs were associated with more advanced disease stage; hsa‐miR‐145‐5p and hsa‐miR‐31‐5p showed increased expression with more advanced tumor stage, while hsa‐miR‐200b‐3p, hsa‐miR‐215 and hsa‐miR‐451a had decreased expression with more advanced tumors. Thirteen miRNAs were associated with CRC mortality among individuals diagnosed with colon cancer while 14 were associated with CRC mortality after a diagnosis with rectal cancer. Strongest associations were observed for those miRNAs that were expressed in a small subset of tumors. Most notable associations were for hsa‐miR‐145‐3p [hazard ratio (HR) 2.94, 95% confidence interval (CI) 1.54, 5.61], and hsa‐miR‐9‐3p (HR 10.28, 95% CI 1.31, 80.84) with colon cancer and hsa‐miR‐335‐5p (HR 0.17, 95% CI 0.05, 0.54) for rectal cancer. hsa‐miR‐374a‐5p, hsa‐miR‐570‐3p and hsa‐miR‐18a‐5p significantly reduced the hazard of dying for all cases, regardless of tumor site. Our findings illustrate the need for a large sample to evaluate the association of miRNAs with survival and disease stage in order to determine associations by tumor site.  相似文献   
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