全文获取类型
收费全文 | 43924篇 |
免费 | 2383篇 |
国内免费 | 73篇 |
专业分类
耳鼻咽喉 | 650篇 |
儿科学 | 1776篇 |
妇产科学 | 772篇 |
基础医学 | 5910篇 |
口腔科学 | 1192篇 |
临床医学 | 2792篇 |
内科学 | 10948篇 |
皮肤病学 | 1411篇 |
神经病学 | 3629篇 |
特种医学 | 1063篇 |
外科学 | 5944篇 |
综合类 | 245篇 |
一般理论 | 18篇 |
预防医学 | 3877篇 |
眼科学 | 1190篇 |
药学 | 2554篇 |
中国医学 | 215篇 |
肿瘤学 | 2194篇 |
出版年
2024年 | 31篇 |
2023年 | 305篇 |
2022年 | 287篇 |
2021年 | 1160篇 |
2020年 | 551篇 |
2019年 | 1267篇 |
2018年 | 1976篇 |
2017年 | 1166篇 |
2016年 | 962篇 |
2015年 | 855篇 |
2014年 | 1062篇 |
2013年 | 1838篇 |
2012年 | 3270篇 |
2011年 | 3717篇 |
2010年 | 1757篇 |
2009年 | 1085篇 |
2008年 | 2861篇 |
2007年 | 2931篇 |
2006年 | 2679篇 |
2005年 | 2723篇 |
2004年 | 2541篇 |
2003年 | 2464篇 |
2002年 | 2189篇 |
2001年 | 1500篇 |
2000年 | 1972篇 |
1999年 | 1035篇 |
1998年 | 270篇 |
1997年 | 166篇 |
1996年 | 167篇 |
1995年 | 135篇 |
1994年 | 122篇 |
1993年 | 109篇 |
1992年 | 145篇 |
1991年 | 116篇 |
1990年 | 93篇 |
1989年 | 92篇 |
1988年 | 83篇 |
1987年 | 61篇 |
1986年 | 58篇 |
1985年 | 66篇 |
1984年 | 67篇 |
1983年 | 51篇 |
1982年 | 38篇 |
1981年 | 29篇 |
1980年 | 36篇 |
1979年 | 25篇 |
1978年 | 36篇 |
1977年 | 28篇 |
1976年 | 22篇 |
1975年 | 26篇 |
排序方式: 共有10000条查询结果,搜索用时 296 毫秒
21.
A. Hochsprung S. Escudero-Uribe A.J. Ibáñez-Vera G. Izquierdo-Ayuso 《Neurología (Barcelona, Spain)》2021,36(6):433-439
IntroductionPain is highly prevalent in patients with multiple sclerosis (MS); it is chronic in 50% of cases and is classified as nociceptive, neuropathic, or mixed-type. Pain affects quality of life, sleep, and the activities of daily living. Electrotherapy is an interesting alternative or complementary treatment in the management of pain in MS, with new innovations constantly appearing.Material and methodsThis study evaluates the effectiveness of treatment with monopolar dielectric transmission of pulsed electromagnetic fields (PEMF) for pain associated with MS. We performed a randomised, placebo-controlled clinical trial including 24 patients, who were assessed with the Brief Pain Inventory, the Multiple Sclerosis International Quality of Life questionnaire, the Beck Depression Inventory, and the Modified Fatigue Impact Scale.ResultsStatistically significant improvements were observed in maximum and mean pain scores, as well as in the impact of pain on work, personal relationships, and sleep and rest. Not significant differences were found between the treatment and placebo groups.ConclusionsTreatment with PEMF may be effective in reducing pain in patients with MS, although further research is necessary to confirm its effectiveness over placebo and to differentiate which type of pain may be more susceptible to this treatment. 相似文献
22.
23.
24.
Ana M. Gómez Angelica Imitola Diana Henao Maira García-Jaramillo Marga Giménez Clara Viñals Bruno Grassi Mariana Torres Isabella Zuluaga Oscar Mauricio Muñoz Martin Rondón Fabián León-Vargas Ignacio Conget 《Diabetes & Metabolic Syndrome: Clinical Research & Reviews》2021,15(1):267-272
Background and aimsDespite using sensor-augmented pump therapy (SAPT) with predictive low-glucose management (PLGM), hypoglycemia is still an issue in patients with type 1 Diabetes (T1D). Our aim was to determine factors associated with clinically significant hypoglycemia (<54 mg/dl) in persons with T1D treated with PLGM-SAPT.Methodology: This is a multicentric prospective real-life study performed in Colombia, Chile and Spain. Patients with T1D treated with PLGM-SAPT, using sensor ≥70% of time, were included. Data regarding pump and sensor use patterns and carbohydrate intake from 28 consecutive days were collected. A bivariate and multivariate Poisson regression analysis was carried out, to evaluate the association between the number of events of <54 mg/dl with the clinical variables and patterns of sensor and pump use.Results188 subjects were included (41 ± 13.8 years-old, 23 ± 12 years disease duration, A1c 7.2% ± 0.9). The median of events <54 mg/dl was four events/patient/month (IQR 1–10), 77% of these events occurred during day time. Multivariate analysis showed that the number of events of hypoglycemia were higher in patients with previous severe hypoglycemia (IRR1.38; 95% CI 1.19–1.61; p < 0.001), high glycemic variability defined as Coefficient of Variation (CV%) > 36% (IRR 2.09; 95%CI 1.79–2.45; p < 0.001) and hypoglycemia unawareness. A protector effect was identified for adequate sensor calibration (IRR 0.77; 95%CI 0.66–0.90; p:0.001), and the use of bolus wizard >60% (IRR 0.74; 95%CI 0.58–0.95; p:0.017).ConclusionIn spite of using advanced SAPT, clinically significant hypoglycemia is still a non-negligible risk. Only the identification and intervention of modifiable factors could help to prevent and reduce hypoglycemia in clinical practice. 相似文献
25.
Ángela M. Ortega-Galán M. Dolores Ruiz-Fernández Rocío Ortiz-Amo José Cabrera-Troya Inés M. Carmona-Rega Olivia Ibáñez-Masero 《Enfermería clínica》2019,29(1):10-17
Objective
To discover the experiences of end-of-life patients attended by the emergency services, through the discourse of the family caregivers who accompanied the family member in this care transit.Method
A qualitative approach study, based on the paradigm of hermeneutical phenomenology. In total, 81 family caregivers participated. The techniques used were the in-depth interview and the discussion group, with a total of 5 discussion groups and 41 interviews. The period of data collection was carried out between January 2013 and June 2014.Results
In the network of discourses obtained with respect to “Urgent Care”, all the codes were grouped in relation to a single argumentative line: deficiencies in urgent care. Among them, we found different dimensions that are established depending on the different times of care, or the different determinant aspects of these deficiencies: disorganization of the care received, lack of experience of the professionals in emergencies, application of general protocols in the emergency services, inadequate care in the treatment received, delays in emergency care.Conclusions
In general, we highlight the dissatisfaction of the family members with respect to the care received from the emergency services. The needs of these types of situation are not covered from these services and are of low quality. Therefore, it is necessary to reorient the care protocols for these patients. 相似文献26.
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
27.
J. Alarcón-Rodríguez M. Fernández-Velilla A. Ureña-Vacas J.J. Martín-Pinacho J.A. Rigual-Bobillo A. Jaureguízar-Oriol L. Gorospe-Sarasúa 《Radiologia》2021,63(3):258-269
Most of the patients who overcome the SARS-CoV-2 infection do not present complications and do not require a specific follow-up, but a significant proportion (especially those with moderate / severe clinical forms of the disease) require clinicalradiological follow-up. Although there are hardly any references or clinical guidelines regarding the long-term follow-up of post-COVID-19 patients, radiological exams are being performed and monographic surveillance consultations are being set up in most of the hospitals to meet their needs. The purpose of this work is to share our experience in the management of the post-COVID-19 patient in two institutions thathave had a high incidence of COVID-19 and to propose general follow-uprecommendations from a clinical and radiological perspective. 相似文献
28.
29.
30.