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71.
72.
Jan Erik Madsen Mika Hukkanen Per Aspenberg Julia Polak Lars Nordsletten 《Acta orthopaedica》2013,84(1):74-79
We studied time-dependent ingrowth of sensory nerve fibers into a bone defect in a rat bone conduction chamber model. In 10 male Sprague Dawley rats, a titanium chamber was implanted bilaterally in the proximal tibiae, representing an experimental bone defect. To mimic a clinical situation, the chambers were filled with a fresh blood clot. After 1, 2, 4, 6 and 8 weeks, 2 rats were fixed in vivo at each time before removal of specimens, and histological and immunohistochemical analyses. We used antisera against protein gene product 9.5, neural growth-associated protein 43/B-50, calcitonin gene-related peptide, and substance P, to locate regenerating sensory nerve fibers in the chamber. During bone defect healing, hematoxylin/eosin sections showed that new bone grew in through the ingrowth openings in the chamber, gradually filling it and replacing the blood clot. At 1 and 2 weeks after implantation, no nerve fibers could be detected. At 4, 6 and 8 weeks, however, small numbers of nerve fibers were seen in 8 of 11 specimens. The nerve fibers were located mainly in the dense fibrous tissue in close proximity to the new bone, and in some cases within the new forming bone. In this chamber model, the periosteum is not in contact with the bone ingrowth openings, and all ingrowing nerve fibers thus originated from the cortical bone, endosteum or bone marrow. We speculated that these late ingrowing sensory nerve fibers may actively participate in bone repair. 相似文献
73.
Atsushi Ishii Sawa Yasumoto Yukiko Ihara Takahito Inoue Takako Fujita Noriko Nakamura Masaharu Ohfu Yushiro Yamashita Hideo Takatsuka Toshiaki Taga Rie Miyata Masahiro Ito Hiroshi Tsuchiya Taro Matsuoka Tetsuya Kitao Kiyotaka Murakami Wang-Tso Lee Sunao Kaneko Shinichi Hirose 《Brain & development》2013
Purpose: PRRT2 mutations were recently identified in benign familial infantile epilepsy (BFIE) and infantile convulsions with paroxysmal choreoathetosis (ICCA) but no abnormalities have so far been identified in their phenotypically similar seizure disorder of benign convulsions with mild gastroenteritis (CwG), while mutations in KCNQ2 and KCNQ3 have been recognized in benign familial neonatal epilepsy (BFNE). The aim of this study was to identify PRRT2 mutations in infantile convulsions in Asian families with BFIE and ICCA, CwG and BFNE. Methods: We recruited 26 unrelated Japanese affected with either BFIE or non-familial benign infantile seizures and their families, including three families with ICCA. A total of 17 Japanese and Taiwanese with CwG, 50 Japanese with BFNE and 96 healthy volunteers were also recruited. Mutations of PRRT2 were sought using direct sequencing. Results: Heterozygous truncation mutation (c.649dupC) was identified in 15 of 26 individuals with benign infantile epilepsy (52.1%). All three families of ICCA harbored the same mutation (100%). Another novel mutation (c.1012+2dupT) was found in the proband of a family with BFIE. However, no PRRT2 mutation was found in either CwG or BFNE. Conclusions: The results confirm that c.649dupC, a truncating mutation of PRRT2, is a hotspot mutation resulting in BFIE or ICCA regardless of the ethnic background. In contrast, PRRT2 mutations do not seem to be associated with CwG or BFNE. Screening for PRRT2 mutation might be useful in early-stage differentiation of BFIE from CwG. 相似文献
74.
目的探讨双歧杆菌三联活菌散联合醒脾养儿颗粒治疗婴幼儿肺炎继发性腹泻的临床疗效。方法选取淮安市淮安医院2015年1月—2017年1月收治的婴幼儿肺炎继发性腹泻患儿108例,随机分成对照组(54例)与治疗组(54例)。对照组患儿口服醒脾养儿颗粒,0~1岁1 g/次,2次/d;1~2岁2 g/次,2次/d;2~3岁4 g/次,2次/d。治疗组在对照组基础上口服双歧杆菌三联活菌散,0~1岁0.5 g/次,3次/d;1~3岁1 g/次,3次/d。两组患儿均连续治疗7 d。评价两组患儿临床疗效,同时比较治疗前后两组患儿症状体征消失时间和大便次数。结果治疗后,对照组患儿总有效率为75.93%,显著低于治疗组的90.74%,两组比较差异具有统计学意义(P0.05)。治疗组循环不良、呕吐和腹泻消失时间比对照组显著缩短,两组比较差异具有统计学意义(P0.05)。在第3、5、7天治疗组大便次数显著少于对照组,两组比较差异具有统计学意义(P0.05)。结论双歧杆菌三联活菌散联合醒脾养儿颗粒治疗婴幼儿肺炎继发性腹泻可有效缓解临床症状体征、提高临床疗效,且安全性高,具有一定的临床推广应用价值。 相似文献
75.
Infantile Fibrosarcoma With NTRK3–ETV6 Fusion Successfully Treated With the Tropomyosin‐Related Kinase Inhibitor LOXO‐101
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Ramamoorthy Nagasubramanian MD Julie Wei MD Paul Gordon MD Jeff C. Rastatter MD Michael C. Cox Pharm.D. MHSc Alberto Pappo MD 《Pediatric blood & cancer》2016,63(8):1468-1470
Infantile fibrosarcoma (IFS) is a rare pediatric cancer typically presenting in the first 2 years of life. Surgical resection is usually curative and chemotherapy is active against gross residual disease. However, when recurrences occur, therapeutic options are limited. We report a case of refractory IFS with constitutive activation of the tropomyosin‐related kinase (TRK) signaling pathway from an ETS variant gene 6–neurotrophin 3 receptor gene (ETV6–NTRK3) gene fusion. The patient enrolled in a pediatric Phase 1 trial of LOXO‐101, an experimental, highly selective inhibitor of TRK. The patient experienced a rapid, radiographic response, demonstrating the potential for LOXO‐101 to provide benefit for IFS harboring NTRK gene fusions. 相似文献
76.
V. Papa B. Romanin R. Bergamaschi D. M. Cordelli R. Costa L. Badiali De Giorgi 《Ultrastructural pathology》2016,40(2):83-85
Juvenile dermatomyositis (JDM), an autoimmune idiopathic myositis, is characterized by rash and proximal muscle weakness. Immunohistopathology typically shows perivascular inflammatory infiltrate with predominance of CD4+ T lymphocytes, perifascicular atrophy, and upregulation of major histocompatibility complex class I. JDM has been attributed to a humoral-driven muscle microangiopathy probably implicating the type I interferon pathway. Tubulo-reticular inclusions present in endothelial cell of muscle are biomarkers of interferon exposure, and so may be an indirect data of this myopathy especially in the absence of rash and inflammatory infiltrate. We report on three patients in which electron microscopy solves the differential diagnosis among infantile myositis showing peculiar inclusions. 相似文献
77.
基于文献研究的小儿反复呼吸道感染常见证素与症状相关性分析 总被引:1,自引:0,他引:1
目的:探讨小儿反复呼吸道感染中证素与症状之间的相关性。方法在对近20年小儿反复呼吸道感染文献资料进行全面检索的基础上,筛选符合纳入标准的文献,规范证候、症状名称,提取病位、病性证素,对其进行统计,并运用秩和检验分析检出率在5%以上的常见证素和症状之间的相关性。结果经初步规范化后,获取病位证素10个,病性证素11个,常见证素与症状之间存在一定相关性。结论通过文献研究,初步确定小儿反复呼吸道感染常见证素与症状之间的对应关系,可为本病的临床辨证和科学研究提供一定的参考。 相似文献
78.
Dimasi DP Hewitt AW Straga T Pater J MacKinnon JR Elder JE Casey T Mackey DA Craig JE 《Clinical genetics》2007,72(3):255-260
Analysis of CYP1B1 in primary congenital glaucoma (PCG) patients from various ethnic populations indicates that allelic heterogeneity is high, and some mutations are population specific. No study has previously reported the rate or spectrum of CYP1B1 mutations in Australian PCG patients. The aim of this study is to determine the frequency of CYP1B1 mutations in our predominately Caucasian, Australian cohort of PCG cases. Thirty-seven probands were recruited from South-Eastern Australia, along with 100 normal control subjects. Genomic DNA was extracted and the coding regions of CYP1B1 analysed by direct sequencing. Sequence analysis identified 10 different CYP1B1 disease-causing variants in eight probands (21.6%). Five subjects were compound heterozygotes, two subjects heterozygous and one homozygous for CYP1B1 mutations. Three missense mutations are novel (D192Y, G329D, and P400S). None of the novel mutations identified were found in normal controls. One normal control subject was heterozygous for the previously reported CYP1B1 R368H mutation. Six previously described probable polymorphisms were also identified. Mutations in CYP1B1 account for approximately one in five PCG cases from Australia. Our data also supported the high degree of allelic heterogeneity seen in similar studies from other ethnic populations, thereby underscoring the fact that other PCG-related genes remain to be identified. 相似文献
79.
《The Journal of pharmacy and pharmacology》2018,70(9):1272-1286
Objectives
To investigate whether mice develop tolerance to the anxiolytic‐like and anticonvulsant effects of subchronic treatment with EA (the styryl‐2‐pyrones and dihydrostyryl‐2‐pyrones‐rich fraction of Polygala sabulosa ), as well as any withdrawal symptoms after abrupt discontinuation; to compare the effects of EA with those of diazepam (DZP ) on withdrawal‐induced anxiety; and to evaluate the toxicity of EA according to OECD guidelines.Methods
Male or female mice were acutely or subchronically treated with EA or DZP , and their tolerance to anxiolytic (evaluated in the elevated plus maze, EPM ) and anticonvulsant effects (measured against pentylenetetrazole (PTZ )‐induced convulsions) were investigated. Other groups received EA or DZP for 28 days followed by withdrawal, being the anxiety‐like behaviour evaluated in the EPM .Key findings
Both acute and subchronic treatments with EA induced an anxiolytic effect in the EPM . The anticonvulsant activity of DZP , but not EA , was reduced by protracted treatment. EA withdrawal retained the anxiolytic profile, while DZP withdrawal induced anxiogenesis. EA counteracted the anxiogenic‐like actions of DZP withdrawal. EA has low toxicity as it did not cause any changes in the biochemical, haematological and histopathological markers.Conclusions
EA avoids the development of tolerance to its anxiolytic‐like and anticonvulsant actions, and does not promote withdrawal syndrome. EA does not cause relevant toxic effects in rodents.80.
目的:观察黄芪注射液对小儿反复呼吸道感染红细胞免疫指标的影响。方法:对体检的健康儿童60例(对照组)进行红细胞C3b受体花环试验、淋巴细胞绝对值测定和植物血凝素(PHA)皮肤试验。60例呼吸道反复感染患儿(治疗组)除常规治疗外,并给予黄芪注射液静滴,于治疗前后分别进行上述检验。结果:治疗组治疗后总有效率达98.3%。治疗后免疫功能3项指标均明显优于治疗前(P均<0.01);治疗组治疗后免疫功能3项指标与健康对照组比较均无显著性差异(P均>0.05)。结论:在西药抗生素及抗病毒治疗基础上,加用黄芪注射液具有增强免疫功能的作用,是治疗小儿反复呼吸道感染及免疫功能低下的一种新途径。 相似文献