全文获取类型
收费全文 | 49778篇 |
免费 | 5067篇 |
国内免费 | 3063篇 |
专业分类
耳鼻咽喉 | 342篇 |
儿科学 | 834篇 |
妇产科学 | 634篇 |
基础医学 | 4546篇 |
口腔科学 | 956篇 |
临床医学 | 7005篇 |
内科学 | 6245篇 |
皮肤病学 | 567篇 |
神经病学 | 1988篇 |
特种医学 | 1510篇 |
外国民族医学 | 19篇 |
外科学 | 3219篇 |
综合类 | 10767篇 |
现状与发展 | 18篇 |
一般理论 | 5篇 |
预防医学 | 4962篇 |
眼科学 | 1213篇 |
药学 | 5845篇 |
62篇 | |
中国医学 | 3873篇 |
肿瘤学 | 3298篇 |
出版年
2024年 | 182篇 |
2023年 | 658篇 |
2022年 | 1536篇 |
2021年 | 2077篇 |
2020年 | 1798篇 |
2019年 | 1347篇 |
2018年 | 1368篇 |
2017年 | 1547篇 |
2016年 | 1309篇 |
2015年 | 2092篇 |
2014年 | 2738篇 |
2013年 | 2981篇 |
2012年 | 4203篇 |
2011年 | 4434篇 |
2010年 | 3536篇 |
2009年 | 3040篇 |
2008年 | 3276篇 |
2007年 | 3206篇 |
2006年 | 3009篇 |
2005年 | 2623篇 |
2004年 | 1846篇 |
2003年 | 1703篇 |
2002年 | 1476篇 |
2001年 | 1091篇 |
2000年 | 961篇 |
1999年 | 672篇 |
1998年 | 388篇 |
1997年 | 376篇 |
1996年 | 281篇 |
1995年 | 276篇 |
1994年 | 230篇 |
1993年 | 119篇 |
1992年 | 189篇 |
1991年 | 177篇 |
1990年 | 148篇 |
1989年 | 142篇 |
1988年 | 109篇 |
1987年 | 126篇 |
1986年 | 101篇 |
1985年 | 80篇 |
1984年 | 59篇 |
1983年 | 54篇 |
1982年 | 29篇 |
1981年 | 30篇 |
1980年 | 34篇 |
1979年 | 25篇 |
1978年 | 25篇 |
1973年 | 29篇 |
1972年 | 23篇 |
1970年 | 17篇 |
排序方式: 共有10000条查询结果,搜索用时 7 毫秒
11.
The authors carried out research on breast volume and body surface anatomy of 125 women. As a result, an average breast volume
for Chinese women was obtained (325.36 ± 12.66 ml), and a table with several linear equations for calculating breast volume
was derived. The authors applied these results to their clinical work and succeeded in making mammaplasty more precise in
178 patients. 相似文献
12.
A 46-year-old man developed a symmetrical parkinsonian syndrome 7 weeks after large right temporal intracerebral haemorrhage resulting from a ruptured arteriovenous malformation. His signs included bradykinesia, rigidity, start hesitation, and poor postural reflexes, without a resting tremor. He also had signs of a Parinaud's syndrome. Computed tomography and magnetic resonance imaging of the brain demonstrated changes in the right temporal lobe associated with the haemorrhage but no abnormality of the basal ganglia or midbrain. Levodopa therapy produced a dramatic improvement within a few days of commencement. We postulate that the parkinsonism resulted from midbrain compression secondary to transtentorial herniation. Although parkinsonism is a rare complication of lobar intracerebral haemorrhage, it is important to recognise as it may be potentially treatable. 相似文献
13.
Treatment for inflammation of the tonsils has taken a variety of therapeutic forms over the years, ranging from the application of iodine and massage in the preantibiotic era to the tonsillectomy, which prevails today. The architecture of the cryptic tonsil, its clinical implications, and the rationale for a conservative, yet effective treatment modality focusing on the tonsillar crypts are addressed in this article. Also described are the procedures and results of a retrospective clinical study in which conventional tonsillectomy was compared with CO2 SwiftLase cryptolysis. Although our observations are not based on a prospective, controlled study, the information disseminated here may be useful to otolaryngologists who routinely perform tonsillectomy in their practice, using conventional surgical dissection methods or the CO2 laser. According to our experience with a population of 120 patients, cryptolysis offers some clear advantages, particularly when performed with the SwiftLase apparatus. The procedure can be performed safely in an ambulatory surgery or office setting under local anesthesia. The cooperative patient avoids the cost and risks of general anesthesia. Limited tissue destruction significantly reduces operative and postoperative complications, discomfort, and recovery time. To conclude, CO2 SwiftLase cryptolysis is a safe and cost-effective method of treating tonsil pathology without unnecessary sacrifice of the organ, and undue risks and expenses to the patient.11,12 相似文献
14.
PharmacokineticsofintravenouslyadministeredsodiumdichloroacetateinrabbitsGuBin(顾斌);SongLing(宋岭);JiangYongpei(蒋永培);WenAidong(文... 相似文献
15.
目的 :营造良性竞争的机制和氛围 ,全面提高护理质量。方法 :通过资格认定、理论技术考试、民主测评及双项选择 ,由护理部聘任。结果 :较好地进行了人力资源的开发 ,竞聘上岗后的护士有责任感和使命感 ,工作积极主动 ,自觉地成为科室各项工作的带头人。加之岗位工资的兑现 ,更有利于护士长在科室开展工作 ,使科室各项护理工作质量显著提高。结论 :良性的竞争运行机制 ,使优秀护理人才脱颖而出 ,体现能级对应的原则 ,从而使护理质量不断提高。 相似文献
16.
S C Hill B M Damaska A Ling K Patterson A M Di Bisceglie R O Brady N W Barton 《Radiology》1992,184(2):561-566
Abdominal magnetic resonance imaging findings were reviewed in 46 patients with Gaucher disease. All patients had hepatosplenomegaly at the time of initial imaging. Splenic nodules were present in 14 patients (30%) and varied in signal intensity. These nodules were isointense on T1-weighted and hypointense on T2-weighted images. Splenic infarcts were seen in 15 patients (33%), and four of these patients (9%) also had subcapsular fluid collections. Both nodules and infarcts were present in the spleen in four patients (9%). Pathologic correlation was performed with specimens from two patients who underwent partial splenectomy. Focal areas of abnormal signal intensity were noted in the liver in nine patients (20%). They were either stellate or segmental, and may represent fibrotic septa with ischemic changes associated with aggregates of Gaucher cells. No changes were noted in the kidneys or abdominal lymph nodes. 相似文献
17.
V C Charuvastra I D Dalali M Cassuci W Ling 《The International journal of the addictions》1992,27(1):15-23
All patients admitted to a Residential Treatment Center (RTC), a drug-free hospital-based inpatient facility in February 1985 through July 1985, were followed-up 6 months after discharge. The results are contrasted with those obtained in 1973 in a similar follow-up study. Length of stay at RTC had been reduced from 1 year in 1973 to 3 months in 1985. Six months after discharge, the longer length of stay in 1973 appears to be almost twice as effective as the 3-month program in 1985. 相似文献
18.
19.
Xu Jingying Liu Xinling Ma Zhuhong Chen LingDepartment of Acupuncture & Moxibustion General Hospital of PLA Beijing China 《世界针灸杂志》1994,(1)
In this paper,250 cases of headache,shoulder pain,lumbago and leg pain weretreated with 20%Angelicae Sinensis mixed with Vitamine B_(12) point-injection therapy.The total effective rate was 95.2%and in which the cure rate was 53.6%.Authors have found a close correlation between the effectiveness and the duration of disease. 相似文献
20.
Systemic toxicity after significant dermal exposure to hydrofluoric acid includes rapid development of hypocalcemia and hyperkalemia, leading to ventricular fibrillation. Similar dysrhythmias have occurred in patients after ingestion of sodium fluoride-containing compounds. Ingestion of hydrofluoric acid could induce similar cardiac toxicity; however, reported cases of hydrofluoric acid ingestion rarely have been described, and the rapid death of these patients has not allowed verification of this hypothesis. On two separate occasions, a 70-year-old woman ingested up to 2 oz of a 8% hydrofluoric acid-containing solution. Recurrent ventricular fibrillation with concurrent hypocalcemia and hypomagnesemia complicated her first episode, whereas a more aggressive administration of calcium and magnesium may have prevented dysrhythmias in the second episode. Survival from ventricular fibrillation after hydrofluoric acid ingestion has not been reported previously and suggests a role for aggressive empiric calcium and magnesium replacement. 相似文献