全文获取类型
收费全文 | 2715篇 |
免费 | 215篇 |
国内免费 | 14篇 |
专业分类
耳鼻咽喉 | 20篇 |
儿科学 | 85篇 |
妇产科学 | 64篇 |
基础医学 | 291篇 |
口腔科学 | 183篇 |
临床医学 | 258篇 |
内科学 | 575篇 |
皮肤病学 | 101篇 |
神经病学 | 153篇 |
特种医学 | 137篇 |
外科学 | 311篇 |
综合类 | 82篇 |
一般理论 | 4篇 |
预防医学 | 247篇 |
眼科学 | 138篇 |
药学 | 145篇 |
中国医学 | 12篇 |
肿瘤学 | 138篇 |
出版年
2023年 | 31篇 |
2022年 | 53篇 |
2021年 | 123篇 |
2020年 | 74篇 |
2019年 | 108篇 |
2018年 | 91篇 |
2017年 | 68篇 |
2016年 | 81篇 |
2015年 | 96篇 |
2014年 | 114篇 |
2013年 | 169篇 |
2012年 | 167篇 |
2011年 | 153篇 |
2010年 | 115篇 |
2009年 | 86篇 |
2008年 | 125篇 |
2007年 | 139篇 |
2006年 | 107篇 |
2005年 | 104篇 |
2004年 | 84篇 |
2003年 | 75篇 |
2002年 | 55篇 |
2001年 | 37篇 |
2000年 | 36篇 |
1999年 | 44篇 |
1998年 | 39篇 |
1997年 | 49篇 |
1996年 | 34篇 |
1995年 | 23篇 |
1994年 | 24篇 |
1993年 | 17篇 |
1992年 | 26篇 |
1991年 | 22篇 |
1990年 | 21篇 |
1989年 | 37篇 |
1988年 | 26篇 |
1987年 | 23篇 |
1986年 | 18篇 |
1985年 | 26篇 |
1984年 | 16篇 |
1983年 | 13篇 |
1982年 | 14篇 |
1981年 | 15篇 |
1980年 | 15篇 |
1979年 | 18篇 |
1978年 | 10篇 |
1977年 | 13篇 |
1975年 | 11篇 |
1971年 | 13篇 |
1969年 | 15篇 |
排序方式: 共有2944条查询结果,搜索用时 15 毫秒
51.
52.
53.
Sarah Heili Frades María del Pilar Carballosa de Miguel Alba Naya Prieto Marina Galdeano Lozano Xavier Mate García Ignacio Mahillo Fernández Itziar Fernández Ormaechea Laura Álvarez Suárez Farah Ezzine de Blas María José Checa Venegas Nicolás González Mangado Germán Peces Barba 《Archivos de bronconeumologia》2019,55(12):634-641
IntroductionHistorically, it has been assumed that Intermediate Respiratory Care Units (IRCU) were efficient, because they saved costs by reducing the number of admissions to intensive care units (ICU), and effective, because they specialized in respiratory diseases.MethodsThe number of IRCU admissions and mortality rate, historically and in 2016, were evaluated. For 2016, the grouped Related Diagnostic Groups (DRGs) were also described, and the savings achieved under all budgetary headings by avoiding UCI stays were calculated. A multivariate analysis was performed to associate costs with mean weights and complexity, and multiple logistic regression was performed on all patients admitted from 2004 to 2017 to describe the variables associated with mortality in our unit.ResultsAn IRCU generates savings of €500,000/year by reducing length of ICU stay. Analysis of the 2016 cohort shows that costs correlate with mean weight and mortality, and consequently complexity. The multivariate logistic regression analysis of the 2004–2017 cohort found respiratory frequency, leukopenia, anemia, hyperkalemia, and acidosis to be the variables best associated with mortality. The area under the curve for the logistic model was 0.75.ConclusionThe IRCU analyzed in our study was efficient in terms of ‘avoided costs’ and savings associated with complexity. Our results suggest that IRCUs have a lower mortality rate than other similar units, and are therefore a safe environment for patients. 相似文献
54.
55.
56.
Hand‐foot‐skin reaction related to use of the multikinase inhibitor sorafenib and hard orthotics
下载免费PDF全文
![点击此处可从《Pediatric dermatology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Ayan Kusari MA Jenna Borok MAS Allison M. Han AB Alix Jessika Valderrama MD Sheila Fallon Friedlander MD 《Pediatric dermatology》2018,35(4):e206-e209
Hand‐foot‐skin reaction is a distinct clinical condition arising in association with the use of multikinase inhibitors, including sorafenib. Because multikinase inhibitors are increasingly being used in children with cancer, recognition of this previously unfamiliar condition is of importance to pediatric dermatologists. We describe the diagnosis and successful treatment of a case of hand‐foot‐skin reaction in a child taking sorafenib for an unresectable desmoid tumor. 相似文献
57.
Until Atlanta Classification (AC) made in 1992, there was not any classification of acute pancreatitis (AP). Last twenty years AC let us compare results and papers. But the increasing understanding of the pathophysiology of AP, improvements in diagnostic methods and the development of minimally invasive tools for radiological, endoscopic and surgical management of local complications, several authors have called for the AC to be reviewed. Last months, two new classifications of AP have been published. We made a historical review of AC, the two new classifications and a comparison between them. 相似文献
58.
Farah Ahmad Syeda F. Kabir Nabila H. Purno Saima Islam Ophira Ginsburg 《Health care for women international》2017,38(4):334-343
In many low- and middle-income countries, breast cancer survival is low. Reasons for this are multifactorial, but delayed presentation for care is a common theme. In this survey study with 100 urban Bangladeshi women, we examined the role of socioeconomic and sociocultural factors on their likelihood to seek breast care from a family physician. In our multivariate model, a woman's age and education significantly predicted her likelihood to see a physician. Sociocultural aspects (e.g., concerns about time commitment of family members, personal household obligations) were significant at bivariate level. Findings are discussed in relation to practice, policy, and research. 相似文献
59.
60.
Metastatic melanoma with balloon/histiocytoid cytomorphology after treatment with immunotherapy: A histologic mimic and diagnostic pitfall
下载免费PDF全文
![点击此处可从《Journal of cutaneous pathology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Maya Farah Priyadharsini Nagarajan Carlos A. Torres‐Cabala Jonathan L. Curry Rodabe N. Amaria Jennifer Wargo Hussein Tawbi Doina Ivan Victor G. Prieto Michael T. Tetzlaff Phyu P. Aung 《Journal of cutaneous pathology》2018,45(7):545-549
Epithelioid cells with foamy cytoplasm (histiocytoid features) are typical histopathologic findings among benign and malignant histiocytic neoplasms such as xanthoma and atypical fibroxanthoma. However, these changes are unusual in melanoma, which is typically composed of nested and variably pigmented atypical epithelioid cells. Here, we report a patient with metastatic melanoma in lymph nodes presenting with prominent balloon cell/histiocytoid features expressing melanocytic markers, after treatment with nivolumab. This report suggests that the spectrum of neoplasms with histiocytoid features should be expanded to include melanoma, a pattern that, to the best of our knowledge, is uncommon, especially in the setting of post‐neoadjuvant therapy. 相似文献