全文获取类型
收费全文 | 7250篇 |
免费 | 432篇 |
国内免费 | 40篇 |
专业分类
耳鼻咽喉 | 80篇 |
儿科学 | 219篇 |
妇产科学 | 155篇 |
基础医学 | 880篇 |
口腔科学 | 135篇 |
临床医学 | 525篇 |
内科学 | 1912篇 |
皮肤病学 | 150篇 |
神经病学 | 770篇 |
特种医学 | 183篇 |
外科学 | 1117篇 |
综合类 | 27篇 |
现状与发展 | 1篇 |
预防医学 | 331篇 |
眼科学 | 84篇 |
药学 | 390篇 |
中国医学 | 9篇 |
肿瘤学 | 754篇 |
出版年
2023年 | 62篇 |
2022年 | 95篇 |
2021年 | 209篇 |
2020年 | 103篇 |
2019年 | 157篇 |
2018年 | 167篇 |
2017年 | 135篇 |
2016年 | 181篇 |
2015年 | 165篇 |
2014年 | 213篇 |
2013年 | 287篇 |
2012年 | 403篇 |
2011年 | 384篇 |
2010年 | 253篇 |
2009年 | 209篇 |
2008年 | 361篇 |
2007年 | 396篇 |
2006年 | 390篇 |
2005年 | 367篇 |
2004年 | 347篇 |
2003年 | 288篇 |
2002年 | 267篇 |
2001年 | 239篇 |
2000年 | 257篇 |
1999年 | 190篇 |
1998年 | 74篇 |
1997年 | 76篇 |
1996年 | 77篇 |
1995年 | 56篇 |
1994年 | 49篇 |
1993年 | 36篇 |
1992年 | 129篇 |
1991年 | 117篇 |
1990年 | 101篇 |
1989年 | 93篇 |
1988年 | 82篇 |
1987年 | 83篇 |
1986年 | 69篇 |
1985年 | 68篇 |
1984年 | 83篇 |
1983年 | 47篇 |
1982年 | 33篇 |
1981年 | 31篇 |
1980年 | 27篇 |
1979年 | 42篇 |
1978年 | 28篇 |
1976年 | 29篇 |
1974年 | 17篇 |
1973年 | 17篇 |
1972年 | 16篇 |
排序方式: 共有7722条查询结果,搜索用时 0 毫秒
141.
Russo D Malagola M de Vivo A Fiacchini M Martinelli G Piccaluga PP Damiani D Candoni A Michielutti A Castelli M Testoni N Ottaviani E Rondoni M Pricolo G Mazza P Zuffa E Zaccaria A Raspadori D Bocchia M Lauria F Bonini A Avanzini P Gugliotta L Visani G Fanin R Baccarani M 《British journal of haematology》2005,131(2):172-179
Fludarabine plus cytarabine (Ara-C) and idarubicin (FLAI) is an effective and well-tolerated induction regimen for the treatment of acute myeloid leukaemia (AML). This phase III trial compared the efficacy and toxicity of FLAI versus idarubicin plus Ara-C and etoposide (ICE) in 112 newly diagnosed AML patients <60 years. Fifty-seven patients received FLAI, as the first induction-remission course, and 55 patients received ICE. Post-induction treatment consisted of high-dose Ara-C (HDAC). After HDAC, patients in complete remission (CR) received a second consolidation course (mitoxantrone, etoposide, Ara-C) and autologous stem cell transplantation (auto-SCT) or allogeneic (allo)-SCT, according to the age, disease risk and donor availability. After a single induction course, CR rate was 74% in the FLAI arm and 51% in the ICE arm (P = 0.01), while death during induction was 2% and 9% respectively. Both haematological (P = 0.002) and non-haematological (P = 0.0001) toxicities, especially gastrointestinal (i.e. nausea, vomiting, mucositis and diarrhoea), were significantly lower in FLAI arm. In both arms, relapses were more frequent in patients who were not submitted to allo-SCT. After a median follow-up of 17 months, 30% and 38% of the patients are in continuous CR in FLAI and ICE arm respectively. Our prospective randomised study confirmed the anti-leukaemic effect and the low toxic profile of FLAI as induction treatment for newly diagnosed AML patients. 相似文献
142.
143.
Ahmed S Siddiqui AK Siddiqui RK Kimpo M Russo L Mattana J 《American journal of hematology》2003,73(3):190-193
Sickle cell disease is characterized by chronic hemolytic anemia and vaso-occlusive painful crisis. The vascular occlusion in sickle cell disease is a complex process and accounts for the majority of the clinical manifestations of the disease. Abdominal pain is an important component of vaso-occlusive painful crisis and may mimic diseases such as acute appendicitis and cholecystitis. Acute pancreatitis is rarely included as a cause of abdominal pain in patients with sickle cell disease. When it occurs it may result form biliary obstruction, but in other instances it might be a consequence of microvessel occlusion causing ischemia. In this series we describe four cases of acute pancreatitis in patients with sickle cell disease apparently due to microvascular occlusion and ischemic injury to the pancreas. All patients responded to conservative management. Acute pancreatitis should be considered in the differential diagnosis of abdominal pain in patients with sickle cell disease. 相似文献
144.
PPARgamma inhibits GH synthesis and secretion and increases apoptosis of pituitary GH-secreting adenomas 总被引:4,自引:0,他引:4
145.
Tatiane Calve Douglas Vicente Russo Júnior Ana Maria Forti Barela 《Revista brasileira de fisioterapia (S?o Carlos (S?o Paulo, Brazil))》2018,22(1):64-69
Background
Exercises that could prevent gait impairment of older adults should be implemented in such a way that practitioners can keep motivation and adherence independent of older adults fitness levels.Objective
This study describes how younger and older adults use a non-pedal tricycle to transport their bodies along a pathway.Methods
Nine younger (24 ± 4.9 y) and nine older (66 ± 4.0 y) adults participated in this study. They moved along a straight pathway at a self-selected comfortable speed with reflective markers on their main lower limb landmarks. A computerized gait analysis system with infrared cameras was used to obtain kinematic data to calculate spatial-temporal parameters and lower limb angles.Results
Overall, participants from both groups were able to perform the task moving at a similar mean speed, with similar stride length and ankle joint excursion. Older adults had higher cadence (mean difference of 17 steps/min; 95% CI = 0.99–1.15) and hip excursion (mean difference of 12°; 95% CI = 28–33), longer stance duration (mean difference of 3.4%; 95% CI = 56.2–59.5), and lower knee excursion (mean difference of 6°; 95% CI = 47.9–53.8) than younger adults.Conclusion
Older adults were able to transport their body with a non-pedal tricycle with more hip and less knee excursion than younger adults. Professionals that work with the older population should look at and take into consideration the use of non-pedal tricycles in exercise protocols and investigate the long-term impacts. 相似文献146.
Gabriela Lopes Santos Thiago Luiz Russo Angela Nieuwenhuys Davide Monari Kaat Desloovere 《Archives of physical medicine and rehabilitation》2018,99(3):501-511.e4
Objective
To compare sitting posture and movement strategies between chronic hemiparetic and healthy subjects while performing a drinking task, using statistical parametric mapping (SPM) and feature analysis.Design
Cross-sectional study.Setting
A university physical therapy department.Participants
Participants (N=26) consisted of chronic hemiparetic (n=13) and healthy individuals (n=13) matched for sex and age.Interventions
Not applicable.Main Outcome Measures
The drinking task was divided into phases: reaching, transporting the glass to mouth, transporting the glass to table, and returning to initial position. An SPM 2-sample t test was used to compare the entire kinematic waveforms of different joint angles (trunk, scapulothoracic, humerothoracic, elbow). Joint angles at the beginning and end of the motion, movement time, peak velocity timing, trajectory deviation, normalized integrated jerk, and range of motion were extracted from the motion data. Group differences for these parameters were analyzed using independent t tests.Results
At the static posture and beginning of the reaching phase, patients showed a shoulder position more deviated from the midline and externally rotated with increased scapula protraction, medial rotation, anterior tilting, trunk anterior flexion and inclination to the paretic side. Altered spatiotemporal variables throughout the task were found in all phases, except for the returning phase. Patients returned to a similar posture as the task onset, except for the scapula, which was normalized after the reaching phase.Conclusions
Chronic hemiparetic subjects showed more deviations in the proximal joints during seated posture and reaching. However, the scapular movement drew nearer to the healthy individuals' patterns after the first phase, showing an interesting point to consider in rehabilitation programs. 相似文献147.
148.
Rago Anna Papa Andrea Antonio Attena Emilio Parisi Valentina Golino Paolo Nigro Gerardo Russo Vincenzo 《Cardiovascular drugs and therapy / sponsored by the International Society of Cardiovascular Pharmacotherapy》2021,35(5):1003-1007
Cardiovascular Drugs and Therapy - The purpose of the present study was to compare the long-term effectiveness and safety of newly initiated anticoagulation with edoxaban (EDO) versus uninterrupted... 相似文献
149.
Kurihara Osamu Takano Masamichi Kakuta Tsunekazu Soeda Tsunenari Crea Filippo Adriaenssens Tom Nef Holger M. Boeder Niklas F. Yamamoto Erika Kim Hyung Oh Russo Michele McNulty Iris Araki Makoto Nakajima Akihiro Lee Hang Mizuno Kyoichi Jang Ik -Kyung 《Journal of thrombosis and thrombolysis》2021,51(4):1026-1035
Journal of Thrombosis and Thrombolysis - Antiplatelet agents and statin therapies are widely used in patients with known cardiovascular disease. Plaque rupture (PR) and plaque erosion (PE) are the... 相似文献
150.
Sarubbi Berardo Colonna Diego Correra Anna Romeo Emanuele D’Alto Michele Palladino Maria Teresa Virno Salvatore D’Onofrio Antonio Russo Maria Giovanna 《Journal of interventional cardiac electrophysiology》2022,63(2):283-293
Journal of Interventional Cardiac Electrophysiology - Implantable cardioverter defibrillators (ICD) are widely accepted therapy in children and adolescents who are survivors of cardiac arrest or... 相似文献