全文获取类型
收费全文 | 10611篇 |
免费 | 827篇 |
国内免费 | 118篇 |
专业分类
耳鼻咽喉 | 74篇 |
儿科学 | 463篇 |
妇产科学 | 314篇 |
基础医学 | 1491篇 |
口腔科学 | 210篇 |
临床医学 | 1039篇 |
内科学 | 2492篇 |
皮肤病学 | 156篇 |
神经病学 | 716篇 |
特种医学 | 372篇 |
外科学 | 1419篇 |
综合类 | 201篇 |
一般理论 | 10篇 |
预防医学 | 677篇 |
眼科学 | 271篇 |
药学 | 687篇 |
中国医学 | 97篇 |
肿瘤学 | 867篇 |
出版年
2023年 | 57篇 |
2022年 | 109篇 |
2021年 | 232篇 |
2020年 | 133篇 |
2019年 | 237篇 |
2018年 | 256篇 |
2017年 | 195篇 |
2016年 | 198篇 |
2015年 | 249篇 |
2014年 | 320篇 |
2013年 | 429篇 |
2012年 | 671篇 |
2011年 | 674篇 |
2010年 | 384篇 |
2009年 | 371篇 |
2008年 | 635篇 |
2007年 | 612篇 |
2006年 | 631篇 |
2005年 | 596篇 |
2004年 | 531篇 |
2003年 | 454篇 |
2002年 | 413篇 |
2001年 | 394篇 |
2000年 | 400篇 |
1999年 | 317篇 |
1998年 | 133篇 |
1997年 | 106篇 |
1996年 | 106篇 |
1995年 | 89篇 |
1994年 | 64篇 |
1993年 | 78篇 |
1992年 | 181篇 |
1991年 | 149篇 |
1990年 | 139篇 |
1989年 | 153篇 |
1988年 | 132篇 |
1987年 | 124篇 |
1986年 | 117篇 |
1985年 | 96篇 |
1984年 | 65篇 |
1983年 | 51篇 |
1982年 | 41篇 |
1981年 | 32篇 |
1980年 | 29篇 |
1979年 | 35篇 |
1978年 | 20篇 |
1977年 | 23篇 |
1976年 | 16篇 |
1975年 | 12篇 |
1974年 | 14篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
Judith Bernardini Valerie Price Ana Figueiredo Aase Riemann Dora Leung 《Peritoneal dialysis international》2006,26(6):658-663
OBJECTIVE: To survey nurses around the world about current practices for peritoneal dialysis (PD) home training programs. DESIGN: Random sampling of nurses to complete a written survey from the International Society for Peritoneal Dialysis Nursing Liaison Committee. Settings: United States, Canada, South America (Brazil, Columbia), The Netherlands, Hong Kong. METHODS: Surveys and responses were sent by fax whenever possible, or by regular mail, or hand carried, or conducted by telephone. Results were stratified by geographic areas as well as by cumulative responses and were expressed as medians with ranges. Kruskal-Wallis was used to evaluate differences in responses. Associations between variables were tested with Pearson correlation. Univariate regression analysis was used to evaluate the impact of variables on peritonitis rates. Variables with p < 0.10 were included in a multivariate analysis. RESULTS: A total of 317 nurses responded: 88 in the United States, 46 in Canada, 58 in South America, 58 in Hong Kong, and 67 in The Netherlands. This represented 37% of all surveys distributed. Respondents had a median of 12 years' experience in nephrology (range 1-35 years), but only 31% had a formal background in adult education. Nearly half received their guidance to patient training from a nurse colleague, 11% were guided by a corporate colleague, and 8% were simply self-taught. Clinics responding had a median of 30 PD patients (range 1-400) and reported they trained a median of 8 patients per year (range 0-86). Reported peritonitis rates were a median 0.46 per year or 1 episode every 26 months. Peritonitis rates, however, were not known by 53% of respondents. Total training time per patient had a very wide range of hours, from 6 to 96. There was no correlation between training time and peritonitis rates among the study respondents (p = 0.38), nor with any other variables. CONCLUSIONS: There is wide variation in practices for PD patient training programs within countries and around the world. Training time did not appear to be related to peritonitis rates. Randomized trials of training practices are needed to determine which approaches produce the best outcomes for patients. 相似文献
2.
3.
A child with myoglobinuria following rhabdomyolysis from child abuse is described. The importance of early recognition and treatment of this condition is emphasized. 相似文献
4.
TF Leung WC Tsoi CK Li KW Chik MMK Shing PMP Yuen 《Acta paediatrica (Oslo, Norway : 1992)》1998,87(6):705-777
We describe a 15-y-old girl with Fechtner-like syndrome, who is the first Chinese reported to have this rare syndrome. She presented with left homonymous hemianopia and neuroimaging revealed haemorrhage in both parietal and occipital lobes. Peripheral blood smear showed macrothrombocytopenia and intracytoplasmic inclusion bodies inside leucocytes. Thrombocytopenia and proteinuria responded to intravenous immunoglobulin and pulsed methylprednisolone. This case illustrates that life-threatening haemorrhage can occur in patients with Fechtner syndrome. Although there was no effective treatment reported in the literature, high dose steroid and immunoglobulin seemed to be useful in our patient. Our patient also had nephritic-nephrotic syndrome with renal insufficiency, which is unusual in adolescent female patients. 相似文献
5.
M L Lachurie L A Mercier Y Castonguay T K Leung 《Journal of the American Society of Echocardiography》1992,5(4):456-458
We describe a case of aortopulmonary fistula in which the correct diagnosis was made by transthoracic echocardiography. The transesophageal approach, because of severe aortic dilatation, failed to provide the correct diagnosis, underlining the importance of complete transthoracic and transesophageal studies in the evaluation of aortic aneurysms. 相似文献
6.
7.
8.
Ting-Kai Leung Chien-Jui Cheng Chi-Ming Lee Li-Kuo Shen Hung-Jung Wang Ya-Yen Chen 《中华医学杂志(英文版)》2005,118(17):1493-1496
The current report focuses on two patients of the same age who presented similar appearances on initial anteroposterior chest images. Follow-up images showed superoanterior and superoposterior mediastinal lesions. The first patient with noninvasive cystic thymoma was suspected before surgery, while the pathologic diagnosis was intrathoracic phrenic nerve schwannoma. The second patient was with an asymmetric, dumbbell-shaped paravertebral tumor over T3 and T4 on the left side. The preoperative… 相似文献
9.
LY Chow MRCPsych D Chung MRCPsych V Leung MB BS TF Leung MB ChB CM Leung MRCPsych 《International journal of clinical practice》1997,51(5):330-331
Akathisia as a side-effect of metoclopramide has received increasing attention in consultation-liaison psychiatry in recent years. A case of metoclopramide-induced akathisia resulting in a suicide attempt is reported in order to highlight the suffering of such patients and the factors that lead to misdiagnosis. 相似文献
10.
Splenic irradiation has been used in patients with HIV-related thrombocytopenia. This retrospective review deals with four patients treated with low dose splenic irradiation. All patients had an increase in platelet count and tolerated the treatment without side effects. However, the treatment response lasted for several months only. 相似文献