全文获取类型
收费全文 | 20918篇 |
免费 | 1209篇 |
国内免费 | 106篇 |
专业分类
耳鼻咽喉 | 188篇 |
儿科学 | 531篇 |
妇产科学 | 500篇 |
基础医学 | 2872篇 |
口腔科学 | 362篇 |
临床医学 | 1995篇 |
内科学 | 4744篇 |
皮肤病学 | 537篇 |
神经病学 | 1838篇 |
特种医学 | 385篇 |
外科学 | 2048篇 |
综合类 | 103篇 |
一般理论 | 13篇 |
预防医学 | 2224篇 |
眼科学 | 514篇 |
药学 | 1529篇 |
中国医学 | 85篇 |
肿瘤学 | 1765篇 |
出版年
2024年 | 25篇 |
2023年 | 218篇 |
2022年 | 458篇 |
2021年 | 817篇 |
2020年 | 444篇 |
2019年 | 653篇 |
2018年 | 733篇 |
2017年 | 471篇 |
2016年 | 503篇 |
2015年 | 625篇 |
2014年 | 893篇 |
2013年 | 1161篇 |
2012年 | 1742篇 |
2011年 | 1870篇 |
2010年 | 1018篇 |
2009年 | 800篇 |
2008年 | 1428篇 |
2007年 | 1446篇 |
2006年 | 1307篇 |
2005年 | 1279篇 |
2004年 | 1082篇 |
2003年 | 982篇 |
2002年 | 898篇 |
2001年 | 130篇 |
2000年 | 91篇 |
1999年 | 113篇 |
1998年 | 150篇 |
1997年 | 122篇 |
1996年 | 75篇 |
1995年 | 84篇 |
1994年 | 74篇 |
1993年 | 59篇 |
1992年 | 55篇 |
1991年 | 47篇 |
1990年 | 34篇 |
1989年 | 31篇 |
1988年 | 34篇 |
1987年 | 21篇 |
1986年 | 27篇 |
1985年 | 23篇 |
1984年 | 20篇 |
1983年 | 20篇 |
1982年 | 15篇 |
1981年 | 15篇 |
1980年 | 17篇 |
1979年 | 22篇 |
1978年 | 14篇 |
1977年 | 15篇 |
1976年 | 12篇 |
1974年 | 13篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
María del Carmen Azorín Samper Marta Hernandorena Gonzlez Alberto Ibez Arias Sandra Díaz Sierra Marta Bertolo Domínguez Flix Checa Ayet 《The breast journal》2020,26(2):252-254
Breast pseudoaneurysms after a core needle biopsy are a rare complication with a low incidence. However, it is important to be aware of the possibility of complications that require treatment. 相似文献
2.
3.
Oliveira Gonalves Ana Sofia Panteli Dimitra Neeb Lars Kurth Tobias Aigner Annette 《The European journal of health economics》2022,23(1):47-57
The European Journal of Health Economics - The aims of this study were to assess whether there is a conceptual overlap between the questionnaires HIT-6 and EQ-5D and to develop a mapping algorithm... 相似文献
4.
José A. Lorente Pablo Cardinal-Fernández Diego Muñoz Fernando Frutos-Vivar Arnaud W. Thille Carlos Jaramillo Aida Ballén-Barragán José M. Rodríguez Oscar Peñuelas Guillermo Ortiz José Blanco Bruno Valle Pinheiro Nicolás Nin María del Carmen Marin Andrés Esteban Taylor B. Thompson 《Intensive care medicine》2015,41(11):1921-1930
5.
Is it possible to make a diagnosis of raw,heated, and baked egg allergy in children using cutoffs? A systematic review
下载免费PDF全文
![点击此处可从《Pediatric allergy and immunology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
6.
María Cabrerizo Gloria Trallero María José Pena Amaia Cilla Gregoria Megias Carmen Mu?oz-Almagro Eva Del Amo Diana Roda Ana Isabel Mensalvas Antonio Moreno-Docón Juan García-Costa Nuria Rabella Manuel Ome?aca María Pilar Romero Sara Sanbonmatsu-Gámez Mercedes Pérez-Ruiz María José Santos-Mu?oz Cristina Calvo And the study group of “Enterovirus parechovirus infections in children under ?years-old Spain” PI- 《European journal of pediatrics》2015,174(11):1511-1516
7.
8.
9.
Jorge Guardado Carlos Cotrim Otília Sim?es Sofia Almeida Mário Ialá Luís Lopes Hélder Pereira Manuel Carrageta 《Revista portuguesa de cardiologia》2006,25(4):409-415
INTRODUCTION: Transesophageal echocardiography (TEE) has become increasingly useful in the study of patients with suspected pulmonary thromboembolism. OBJECTIVE: The aim of this study was to prospectively evaluate the usefulness of TEE in the study of the distal part of the left pulmonary artery (LPA) as well as the influence of this procedure on total echocardiographic exam duration. METHODOLOGY: A prospective study in two groups of consecutive patients referred for TEE with a one- year interval between evaluation of Group A: 33 patients, 17 male, mean age 54 +/- 24 years, and Group B: 42 patients, 20 male, mean age 48 +/- 27 years (p = NS). The procedure was considered long when it took more than 3 min to evaluate the distal part of the LPA. RESULTS: In group A we were able to visualize the distal part of the LPA in 24 patients (73%) without significant prolongation of total exam duration in 16 patients (48% of group A). In one of the patients with suspected pulmonary thromboembolism thrombi were only observed in the distal part of the LPA. In group B we were able to visualize the distal part of the LPA in 36 patients (86%) without significant prolongation of total exam duration in 26 patients (61% of group B). CONCLUSIONS: 1. Visualization of the distal part of the LPA was possible in more patients, and with TEE time prolongation in less patients, in group B. These differences can be accounted for by the training of the operator in this technique. 2. The importance of visualization of this part of the LPA in guiding treatment in the subset of patients with pulmonary thromboembolism confirms the usefulness of this specific procedure. 相似文献
10.