全文获取类型
收费全文 | 377587篇 |
免费 | 34880篇 |
国内免费 | 26062篇 |
专业分类
耳鼻咽喉 | 2885篇 |
儿科学 | 4977篇 |
妇产科学 | 4263篇 |
基础医学 | 41494篇 |
口腔科学 | 6182篇 |
临床医学 | 53170篇 |
内科学 | 51234篇 |
皮肤病学 | 4210篇 |
神经病学 | 18505篇 |
特种医学 | 13822篇 |
外国民族医学 | 224篇 |
外科学 | 33427篇 |
综合类 | 69980篇 |
现状与发展 | 86篇 |
一般理论 | 31篇 |
预防医学 | 27957篇 |
眼科学 | 10742篇 |
药学 | 40871篇 |
436篇 | |
中国医学 | 24460篇 |
肿瘤学 | 29573篇 |
出版年
2024年 | 1291篇 |
2023年 | 5530篇 |
2022年 | 14520篇 |
2021年 | 18550篇 |
2020年 | 14576篇 |
2019年 | 11934篇 |
2018年 | 12339篇 |
2017年 | 11771篇 |
2016年 | 10883篇 |
2015年 | 16923篇 |
2014年 | 21080篇 |
2013年 | 19212篇 |
2012年 | 28580篇 |
2011年 | 32116篇 |
2010年 | 21635篇 |
2009年 | 17609篇 |
2008年 | 21536篇 |
2007年 | 21251篇 |
2006年 | 20269篇 |
2005年 | 19351篇 |
2004年 | 12815篇 |
2003年 | 12308篇 |
2002年 | 10067篇 |
2001年 | 8543篇 |
2000年 | 8333篇 |
1999年 | 8403篇 |
1998年 | 5309篇 |
1997年 | 5104篇 |
1996年 | 3968篇 |
1995年 | 3726篇 |
1994年 | 3136篇 |
1993年 | 2036篇 |
1992年 | 2429篇 |
1991年 | 2131篇 |
1990年 | 1801篇 |
1989年 | 1563篇 |
1988年 | 1287篇 |
1987年 | 1195篇 |
1986年 | 956篇 |
1985年 | 682篇 |
1984年 | 371篇 |
1983年 | 272篇 |
1982年 | 145篇 |
1981年 | 172篇 |
1980年 | 117篇 |
1979年 | 154篇 |
1978年 | 73篇 |
1977年 | 53篇 |
1974年 | 42篇 |
1972年 | 37篇 |
排序方式: 共有10000条查询结果,搜索用时 92 毫秒
981.
近年来,我国病案管理工作有了飞速发展,病案管理已从落后的旧模式中转型,走向信息化、计算机化,管理职能也向多元化转变,病案管理较以往更多的涉及到医院经营管理、基本医疗保险、商业保险、法律等为社会各方面广泛的服务。 相似文献
982.
983.
984.
目的了解住院患者死因及威胁人类生命的主要原因,降低病死率,提高医疗质量。方法收集我院2003年~2005年住院病例799例,对其死因、性别、年龄、职业、发病时间、入院时间、抢救措施等进行回顾性分析。结果死亡病例中,以老年人为主,男性多于女性,恶性肿瘤成为住院患者死亡的首位原因,寒冷季节是死亡高峰期,多数患者来院时发病已超过1周,一半患者在入院一周内死亡,抢救过程中气管插管和电除颤是重要措施。结论重视各种因素对死亡病例的影响,加强新理论、新知识的提高,对提高医疗质量有重要作用。 相似文献
985.
诊断学是论述诊断疾病的基本理论、基本技能和临床思雏方法的一门学科。现存的高职诊断学教学中存在培养目标不明确、课程设王不舍理、教学模式陈旧单一、实习基地建设不足、考试评估体系不完善等问题。为此,我们可以采取明确培养目标;调整课程设置,增加实践教学;采用多种教学模式;加强实习基地的建设;改进测评手段。强化技能训练等措施加以改进。 相似文献
986.
Objective: To investigate whether the method of bridgy duct established between the recipient's spleen artery and the donor's gastroduodenal artery could inhibit the apoptosis of liver and bile duct cells caused by hepatic artery ischemia. Methods: Twenty-four mongrel dogs from Xi'an area were used to establish simplified models of dog orthotopic liver transplantation and divided into three groups randomly: HAI group (hepatic artery ischemia group),BBB group(bypassing the blood by a bridgy duct) and control group. After cold perfusion, The samples were collected from liver and bile duct in each group at different time and fixed in glutaraldehyde and 4% polyformaldehyde respectively. At last, the apoptosis of liver and bile duct cells were observed and the apoptotic indexes were calculated. Results: Two hours after cold perfusion, apoptotic phenomenon was common in HAI group, rare in BBB group, while no apoptotic phenomenon was observed in control group. TUNEL staining showed that there was no significant difference in apoptotic index among the three groups immediately after cold perfusion. However, with time going, the apoptotic cells were increased in three groups, and the difference in apoptotic index was significant among three groups (P 〈 0.01 ). Conclusions: Bridgy duct of hepatic artery can inhibit the apoptosis of liver and bile duct cells caused by HAI significantly. 相似文献
987.
Objective: To investigate the distribution of TRPA1 (one kind of the TRP-like ion channel family) channel in the hippocampus and cerebral cortex of rat. Methods: RT-PCR was used to amplify the fragment of TRPA1 in the DRG (dorsal root ganglion), hippocampus and cerebral cortex of adult SD rat. In situ hybridization staining was used to show the distribution of TRPA1 mRNA in the hippocampus and cerebral cortex of adult rat brain. Results: Both RT-PCR and in situ hybridization staining showed that TRPA1 mRNA was expressed in hippocampus and cerebral cortex of the adult rat brain. Conclusion: Our results suggest that there is expression of TRPA1 mRNA both in the hippocampus and cerebral cortex of the adult rat brain. 相似文献
988.
Tiebing Zhu Jun Wang Leming Fan Yong Li Zhijian Yang Kejiang CAO Jun Huang 《南京医科大学学报(自然科学版)》2006,20(5):271-274
Objective: To investigate V264M polymorphism of tissue factor pathway inhibitor (TFPI) in patients with acute coronary syndrome (ACS) in Chinese. Methods : The genotypes of V264M were detected by polymerase chain reaction (PCR) and restriction fragment length polymorphism (PCR-RFLP) in 136 patients with ACS and 106 healthy controls with their plasmal f-TFPI tested by enzyme linked immunosorbent assay (ELISA). Results: Two genotypes were found in V264M: GG and GA. The distribution frequencies of alleles and genotypes were in accordance with those predicted by Hardy Weinberg equilibrium in the present study (χ2 = 0.437, P 〉 0.05). Plasma f-TFPI level was lower in A allele bearer than that in non-A allele carriers and higher in ACS than control subjects (P〈0.05). No relationship was found between ACS and V264M polymorphism (P〉0.05). Conclusion: The V264M polymorphism may have an impact on the plasma level of free TFPI(f-TFPI), but it has no relationship with ACS. 相似文献
989.
Hyperglycemia, hyperlipemia, and periodic paralysis: a case report of new side effects of clozapine 总被引:2,自引:0,他引:2
Wu G Dias P Chun W Li G Kumar S Singh S 《Progress in neuro-psychopharmacology & biological psychiatry》2000,24(8):93-1400
- 1. 1. This case report of a Chinese male schizophrenic patient describes new side effects that have not been documented previously for patients treated with clozapine. At certain doses of clozapine, the patient showed direct adverse reactions, which include a combination of hyperglycemia, hyperlipemia, and periodic paralysis.
- 2. 2. In a four-year study of this patient who had no previous episodes of diabetes in his or his family history, the authors found that these symptoms disappeared upon withdrawal of clozapine and relapsed with re-treatment of the drug.
- 3. 3. This study indicates that hyperglycemia, hyperlipemia, and periodic paralysis may need to be monitored on patients treated with clozapine.
990.
目的探讨螺旋CT虚拟内诊镜(CTVE)在小儿气管、支气管异物诊断上的应用价值。
方法回顾性分析东南大学医学院附属徐州医院1998年1月至2004年12月收治的121例术前经CTVE诊断为气管支气管异物,并行支气管镜探查术患儿的诊疗情况,并分析CTVE诊断在临床应用上的意义及诊断的阳性符合率。
结果121例经CTVE诊断并行支气管镜探查证实并取除异物者115例,诊断符合率9504%。
结论CTVE检查是目前无创非侵入性诊断小儿气管支气管异物的较理想方法。 相似文献