全文获取类型
收费全文 | 9456篇 |
免费 | 689篇 |
国内免费 | 12篇 |
专业分类
耳鼻咽喉 | 86篇 |
儿科学 | 189篇 |
妇产科学 | 181篇 |
基础医学 | 1503篇 |
口腔科学 | 236篇 |
临床医学 | 904篇 |
内科学 | 2027篇 |
皮肤病学 | 361篇 |
神经病学 | 1037篇 |
特种医学 | 346篇 |
外国民族医学 | 2篇 |
外科学 | 1013篇 |
综合类 | 66篇 |
一般理论 | 6篇 |
预防医学 | 833篇 |
眼科学 | 115篇 |
药学 | 603篇 |
中国医学 | 19篇 |
肿瘤学 | 630篇 |
出版年
2023年 | 55篇 |
2022年 | 80篇 |
2021年 | 231篇 |
2020年 | 176篇 |
2019年 | 220篇 |
2018年 | 253篇 |
2017年 | 184篇 |
2016年 | 224篇 |
2015年 | 228篇 |
2014年 | 297篇 |
2013年 | 437篇 |
2012年 | 610篇 |
2011年 | 599篇 |
2010年 | 334篇 |
2009年 | 297篇 |
2008年 | 479篇 |
2007年 | 476篇 |
2006年 | 467篇 |
2005年 | 486篇 |
2004年 | 418篇 |
2003年 | 379篇 |
2002年 | 365篇 |
2001年 | 240篇 |
2000年 | 254篇 |
1999年 | 203篇 |
1998年 | 104篇 |
1997年 | 84篇 |
1996年 | 108篇 |
1995年 | 74篇 |
1994年 | 59篇 |
1993年 | 71篇 |
1992年 | 133篇 |
1991年 | 154篇 |
1990年 | 148篇 |
1989年 | 121篇 |
1988年 | 106篇 |
1987年 | 91篇 |
1986年 | 93篇 |
1985年 | 105篇 |
1984年 | 102篇 |
1983年 | 56篇 |
1982年 | 51篇 |
1981年 | 38篇 |
1979年 | 37篇 |
1978年 | 32篇 |
1977年 | 37篇 |
1973年 | 28篇 |
1972年 | 30篇 |
1968年 | 31篇 |
1967年 | 28篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
Schmitz Jan Jansen Stefanie Meyer Moritz Hinkelbein Jochen 《Notfall & Rettungsmedizin》2022,25(4):285-293
Notfall + Rettungsmedizin - Tauchunfälle sind vergleichsweise selten und stellen (Erst‑)Helfer vor besondere Herausforderungen. Sie müssen schnell und kompetent behandelt werden, da... 相似文献
5.
Low myocardial glucose uptake in Turner syndrome is unaffected by growth hormone: a randomized,placebo‐controlled FDG‐PET study
下载免费PDF全文
![点击此处可从《Clinical endocrinology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
6.
A 27-year-old man was admitted with high fever and shivers eleven days after returning from vacation in Indonesia. Physical examination, laboratory values, abdominal ultrasound, and chest x-ray were not conclusive. All blood cultures yielded growth of Salmonella enterica serovar Typhi, and typhoid fever was diagnosed. Subsequently, the patient developed septic shock and pulmonary edema.In this case report epidemiological, clinical, and therapeutic aspects of typhoid fever are discussed with special emphasis on criteria for severe typhoid fever, which is treated with additional glucocorticoids. 相似文献
7.
Neil H Pliskin Alia N Ammar Joseph W Fink S Kristian Hill Aaron C Malina Alona Ramati Kathleen M Kelley Raphael C Lee 《Journal of the International Neuropsychological Society》2006,12(1):17-23
The clinical presentation of electrical injury commonly involves physical, cognitive, and emotional complaints. Neuropsychological studies, including case reports, have indicated that electrical injury (EI) survivors may experience a broad range of impaired neuropsychological functions, although this has not been clarified through controlled investigation. In this study, we describe the neuropsychological test findings in a series of 29 EI patients carefully screened and matched to a group of 29 demographically similar healthy electricians. Participants were matched by their estimated premorbid intellectual ability. Multivariate analysis of variance was used to assess group differences in the following neuropsychological domains: attention and mental speed, working memory, verbal memory, visual memory, and motor skills. EI patients performed significantly worse on composite measures of attention/mental speed and motor skills, which could not be explained by demographic differences, injury parameters, litigation status, or mood disturbance. Results suggest that cognitive changes do occur in patients suffering from electrical injury. 相似文献
8.
Philippe Nickers Luc Coppens Jean de Leval Nicolas Jansen Jean-Marie Deneufbourg 《Radiotherapy and oncology》2006,79(3):329-334
BACKGROUND AND PURPOSE: To evaluate on 201 locally advanced prostatic cancers prospectively treated in a phase II trial, the efficacy of a combination of external beam radiotherapy (39.6 Gy) and (192)Ir low dose rate brachytherapy (Bt) (40-45 Gy). PATIENTS AND METHODS: Sixty-four patients were included in the intermediate prognosis group with only one of the following adverse factors (PSA > 10 ng/ml, Gleason score > or = 7 or clinical stage > or =T2b) and 137 in the unfavourable group when at least two of these factors were present. RESULTS: The actuarial 4 years biochemical no evidence of disease is 82.8% for the entire population. It is, respectively, 97 and 76% in the intermediate and unfavourable prognosis groups (P < 0.0001). Grade > or =3 late urinary complications occurred in 13 patients (6.5%). Eight patients (4%) presented late grade 2 rectal complications but no grades 3-5 was observed. CONCLUSIONS: Even if an alpha/beta of 1.5-3 Gy theoretically favours the use of a high dose rate mode of irradiation, the early results presented here are as good as those reported for similar groups of patients with high dose rate treatments. Late toxicity is identical but our urinary toxicity is within the less favourable and rectal toxicity within the most favourable results. We can postulate that while inducing very high hyperdosage regions (V150) mainly focused on the peripheral zone, most of the Bt techniques consist of a more ablative treatment. Many of the radiobiological studies on Bt did not in fact take into account the heterogeneity of irradiation inside the CTV. This study highlights the need to explore pulsed dose rate therapies, permanent implant and new available radioisotopes such as (169)Ytterbium that will offer the safety of low and lower dose rates. The actual late toxicity of the different Bt techniques is not yet inexistent indeed. 相似文献
9.
Ulla Bergfeldt Kristian Borg Kjell Kullander Per Julin 《Journal of rehabilitation medicine》2006,38(3):166-171
OBJECTIVE: Analysis of the effects of a comprehensive focal spasticity program in adult patients. DESIGN: Retrospective study of an out-patient cohort. PATIENTS: One hundred patients were enrolled in the study (54 men and 46 women, mean age 41 years (SD 14). Cerebral palsy and stroke were equally common (80% in total). The remaining patients had miscellaneous diagnoses, including traumatic brain injury. METHODS: On average 230 units (SD 101) of botulinum toxin A Botox was given for 227 principal therapy targets chosen by the patient or the caregiver. One patient could have several targets for therapy. Administration of botulinum toxin was combined with 260 additional therapeutic interventions, most of which were forms of physical therapy. The effects were assessed after 6 weeks and compared with baseline functional abilities 1-2 weeks prior to therapy. RESULTS: Improvement was observed for 211 (93%) therapy targets, no change in 15 (7%), and impairment in 1, corresponding to an overall improvement in 90 patients (90%), 9 unchanged (9%) and worsening in 1. Spasticity assessment (Ashworth scale 0-4; 30 patients) showed a statistically significant improvement (median at baseline was 3 vs 2 after therapy, mean difference 1.2, p<0.001). CONCLUSION: Improvement was observed in >or=90% of patients and in their principal therapeutic targets in a cohort receiving their first focal spasticity treatment with botulinum toxin A and additional therapy. A strict strategy for patient selection and comprehensive management was followed. 相似文献
10.
A study was carried out in order to document any abnormalities in the electro-encephalogram (EEG) that might appear in young adolescents who have deliberately inhaled the range of volatile substances loosely referred to as 'glue'. The EEGs of a group of 'street children' being assisted in a Johannesburg shelter were examined. The records were analysed for any clinical abnormalities and also subjected to spectral analysis in order to examine the overall characteristics of frequency, power and spatial distribution. The EEGs clearly revealed that, although at the time of the examination the subjects were ostensibly abstinent, both clinical and normative evidence of continuing brain disturbance was present. It was concluded that glue sniffing is likely to have long term electrocerebral sequelae. 相似文献