全文获取类型
收费全文 | 43033篇 |
免费 | 2299篇 |
国内免费 | 135篇 |
专业分类
耳鼻咽喉 | 642篇 |
儿科学 | 1791篇 |
妇产科学 | 725篇 |
基础医学 | 5753篇 |
口腔科学 | 1185篇 |
临床医学 | 2777篇 |
内科学 | 10621篇 |
皮肤病学 | 1427篇 |
神经病学 | 3484篇 |
特种医学 | 1230篇 |
外科学 | 5767篇 |
综合类 | 269篇 |
一般理论 | 17篇 |
预防医学 | 3775篇 |
眼科学 | 1169篇 |
药学 | 2527篇 |
中国医学 | 212篇 |
肿瘤学 | 2096篇 |
出版年
2024年 | 30篇 |
2023年 | 296篇 |
2022年 | 264篇 |
2021年 | 1107篇 |
2020年 | 525篇 |
2019年 | 1224篇 |
2018年 | 1919篇 |
2017年 | 1123篇 |
2016年 | 929篇 |
2015年 | 817篇 |
2014年 | 1000篇 |
2013年 | 1750篇 |
2012年 | 3120篇 |
2011年 | 3560篇 |
2010年 | 1704篇 |
2009年 | 1060篇 |
2008年 | 2773篇 |
2007年 | 2869篇 |
2006年 | 2594篇 |
2005年 | 2664篇 |
2004年 | 2450篇 |
2003年 | 2390篇 |
2002年 | 2132篇 |
2001年 | 1502篇 |
2000年 | 1972篇 |
1999年 | 1020篇 |
1998年 | 332篇 |
1997年 | 231篇 |
1996年 | 217篇 |
1995年 | 180篇 |
1994年 | 159篇 |
1993年 | 147篇 |
1992年 | 143篇 |
1991年 | 112篇 |
1990年 | 101篇 |
1989年 | 111篇 |
1988年 | 107篇 |
1987年 | 76篇 |
1986年 | 66篇 |
1985年 | 79篇 |
1984年 | 81篇 |
1983年 | 58篇 |
1982年 | 53篇 |
1981年 | 37篇 |
1980年 | 47篇 |
1979年 | 29篇 |
1978年 | 41篇 |
1977年 | 44篇 |
1976年 | 35篇 |
1975年 | 39篇 |
排序方式: 共有10000条查询结果,搜索用时 237 毫秒
991.
992.
993.
994.
995.
Mejia-Vilet Juan M. Gómez-Ruiz Ismael A. Cruz Cristino Méndez-Pérez R. Angélica Comunidad-Bonilla Roque A. Uribe-Uribe Norma O. Nuñez-Alvarez Carlos A. Morales-Buenrostro Luis E. 《Clinical rheumatology》2021,40(6):2233-2242
Clinical Rheumatology - Thrombotic microangiopathy (TMA) in systemic lupus erythematosus is a rare manifestation associated with activation of the complement system. This study aimed to compare... 相似文献
996.
Ramírez Julio Inciarte-Mundo José Cuervo Andrea Celis Raquel Ruiz-Esquide Virginia Castellanos-Moreira Raul Ponce Andrés Gómez-Puerta José A. Sanmartí Raimon Cañete Juan D. 《Clinical rheumatology》2021,40(7):2665-2672
Clinical Rheumatology - To compare long-term clinical, immunological, and radiographic outcomes between five sets of remission criteria (four clinical and one ultrasound (US)-based) in a cohort of... 相似文献
997.
Fernández-Ávila Daniel Gerardo Patino-Hernandez Daniela Kowalskii Sergio Vargas-Caselles Alfredo Sapag Ana Maria Cachafeiro-Vilar Antonio Meléndez-Muñoz Lucia Santiago-Pastelín Carlos Graf Cesar Rossetto Chayanne Palleiro Daniel Trincado Daniela Fernández-Ávila Diana Arrieta Dina Reyes Gil Then Baez Jossiel Ugarte-Gil Manuel F. Cardiel Mario Colman Nelly Chávez Nilmo Burgos Paula I Montúfar Ruben Sandino Sayonara Fuentes-Silva Yurilis Soriano Enrique R. 《Clinical rheumatology》2021,40(7):2913-2920
Clinical Rheumatology - Studies conducted by various scientific societies have shown that the demand for specialized rheumatology care is greater than the projected growth of the workforce. Our... 相似文献
998.
Garcia-Silva Rafael Hernandez-Doño Susana Román-Amparo Jeniffer Patricia Trujillo-Vizuet Ma Guadalupe Mena-Vela Blanca Aurora Rizo-Pinto Andrea Tirado José Manuel Pérez Cetina-Díaz José Hiram Bulos-Rodríguez Pedro Granados Julio Sepúlveda-Delgado Jesús 《Clinical rheumatology》2021,40(8):3095-3103
Clinical Rheumatology - Systemic lupus erythematosus (SLE) is the prototypic autoimmune disease that disrupts numerous immunity mechanisms with the potential to exert damage to any organ or tissue.... 相似文献
999.
Lozano-Plata Luis Iván Vega-Morales David Esquivel-Valerio Jorge Antonio Garza-Elizondo Mario Alberto Galarza-Delgado Dionicio A. Silva-Luna Karina Serna-Peña Griselda Sifuentes-Ramírez Janeth Garza-Guerra Alfredo de Jesús Díaz-Niño de Rivera Raúl 《Clinical rheumatology》2021,40(8):3257-3264
Clinical Rheumatology - FM is a chronic musculoskeletal disorder characterized by the presence of generalized pain. There are contradictory results regarding the prevalence and supplementation... 相似文献
1000.
Jaume Francisco-Pascual Eduard Rodenas Yassin Belahnech Nuria Rivas-Gándara Jordi Pérez-Rodon Alba Santos-Ortega Begoña Benito Ivo Roca-Luque Yolima Cossio-Gil Vicens Serra Garcia Sandra Llerena-Butron Julian Rodríguez-García Angel Moya-Mitjans David García-Dorado Ignacio Ferreira-González 《The Canadian journal of cardiology》2021,37(2):284-291
BackgroundSevere aortic stenosis (AoS) is considered a primary cause of syncope. However, other mechanisms may be present in these patients and accurate diagnosis can have important clinical implications. The aim of this study is to assess the different etiologies of syncope in patients with severe AoS and the impact on prognosis of attaining a certain or highly probable diagnosis for the syncope.MethodsOut of a cohort of 331 patients with AoS and syncope, 61 had severe AoS and were included in the study. Main cause of syncope and adverse cardiac events were assessed.ResultsIn 40 patients (65.6%), we reached a certain or highly probable diagnosis of the main cause of the syncope. AoS was considered the primary cause of the syncope in only 7 patients (17.5% of the patients with known etiology). Atrioventricular block (14 patients, 35.0%) and vasovagal syncope (6 patients, 15.0%) were the most frequently diagnosed causes. The presence of a known cause for syncope during the admission was not associated with a lower incidence of recurrence during follow-up (hazard ratio [HR] 0.69, 95% confidence interval [CI] 0.20-2.40). Syncope of unknown etiology was independently associated with greater mortality during 1-year follow-up (HR 5.4, 95% CI 1.3-21.6) and 3-year follow-up (HR 3.5, 95% CI 1.2-10.3).ConclusionsIn a high proportion of patients with severe AoS admitted for syncope, the valvulopathy was not the main cause of the syncope. Syncope in two-thirds of this population was caused by either bradyarrhythmia or reflex causes. Syncope of unknown cause was associated with increased short- and medium-term mortality, independently from treatment of the valve disease. An exhaustive work-up should be conducted to determine the main cause for syncope. 相似文献