全文获取类型
收费全文 | 902篇 |
免费 | 103篇 |
国内免费 | 1篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 17篇 |
妇产科学 | 12篇 |
基础医学 | 74篇 |
口腔科学 | 3篇 |
临床医学 | 203篇 |
内科学 | 141篇 |
皮肤病学 | 1篇 |
神经病学 | 147篇 |
特种医学 | 19篇 |
外科学 | 61篇 |
综合类 | 12篇 |
一般理论 | 5篇 |
预防医学 | 128篇 |
眼科学 | 12篇 |
药学 | 119篇 |
中国医学 | 1篇 |
肿瘤学 | 49篇 |
出版年
2024年 | 2篇 |
2023年 | 14篇 |
2022年 | 5篇 |
2021年 | 17篇 |
2020年 | 27篇 |
2019年 | 40篇 |
2018年 | 37篇 |
2017年 | 38篇 |
2016年 | 36篇 |
2015年 | 40篇 |
2014年 | 38篇 |
2013年 | 50篇 |
2012年 | 55篇 |
2011年 | 78篇 |
2010年 | 45篇 |
2009年 | 39篇 |
2008年 | 45篇 |
2007年 | 68篇 |
2006年 | 55篇 |
2005年 | 61篇 |
2004年 | 58篇 |
2003年 | 34篇 |
2002年 | 34篇 |
2001年 | 11篇 |
2000年 | 10篇 |
1999年 | 6篇 |
1998年 | 2篇 |
1997年 | 5篇 |
1996年 | 7篇 |
1995年 | 7篇 |
1994年 | 3篇 |
1993年 | 1篇 |
1992年 | 2篇 |
1991年 | 2篇 |
1990年 | 6篇 |
1989年 | 1篇 |
1988年 | 3篇 |
1987年 | 4篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1973年 | 1篇 |
排序方式: 共有1006条查询结果,搜索用时 15 毫秒
1.
2.
I Dormehl R Burow N Hugo M Maree C Van Zandwijk C Van Vuuren W E Adam 《Nuclear medicine communications》1987,8(10):805-813
Phase analysis of data from radionuclide ventriculograms is known to provide space-time information on the mechanical emptying of pixels located in the ventricular regions. It could therefore perhaps be useful for detecting abnormal sequences of contraction of the ventricles as well as to localize sites of premature electromechanical action. The phase programme used in this investigation is designed to trace the electromechanical action of the ventricles from colour-coded phase images (first harmonic Fourier transform), not only visually from a cinematic representation, but particularly from a data output of x, y coordinates and phase angles of sites chosen as they empty in the ventricular regions. Six healthy baboons were subjected to conventional radionuclide ventriculography, performed hourly for the duration of 11 h under anaesthesia. The programme was used by two independent observers to map the progression of emptying for each of the thus acquired 66 left ventricular phase images. The interobserver reliability and the accuracy achieved in mapping normal contraction patterns was found to be good. Abnormalities which appeared during the prolonged anaesthesia and which were confirmed with 12 lead electrocardiography were likewise detected consistently. 相似文献
3.
M S Bornman I C Dormehl D J Du Plessis M Du Plessis D J Jacobs M Maree 《Suid-Afrikaanse tydskrif vir geneeskunde》1986,69(8):500-501
Because of the development of hypercoagulability and the deposition of fibrin in the penis during erection a study of the possible role of platelets in this process was undertaken. Platelet response was studied in 9 adult chacma baboons (Papio ursinus) using autologous in vitro indium-111-labelled platelets and sequential scintigraphy of the penis during erection. The blood pooling pattern was obtained using in vivo technetium-99m-labelled red cells in a similar investigation. A statistically significant retention of platelets occurred during and after erection, which could not be attributed to blood pooling (P less than 0,05). Entrapment of platelets could lead to enhanced activity and activation, and might play a significant role in hypercoagulability and fibrin deposition during erection. Therefore platelets could be an important factor in the pathogenesis of ageing impotence. 相似文献
4.
Blossom Christa Maree Stephan Nora Breen Diana Caine 《Journal of the International Neuropsychological Society》2006,12(6):884-895
Prosopagnosia is currently viewed within the constraints of two competing theories of face recognition, one highlighting the analysis of features, the other focusing on configural processing of the whole face. This study investigated the role of feature analysis versus whole face configural processing in the recognition of facial expression. A prosopagnosic patient, SC made expression decisions from whole and incomplete (eyes-only and mouth-only) faces where features had been obscured. SC was impaired at recognizing some (e.g., anger, sadness, and fear), but not all (e.g., happiness) emotional expressions from the whole face. Analyses of his performance on incomplete faces indicated that his recognition of some expressions actually improved relative to his performance on the whole face condition. We argue that in SC interference from damaged configural processes seem to override an intact ability to utilize part-based or local feature cues. 相似文献
5.
Buhrich N Hodder T Teesson M 《The Australian and New Zealand journal of psychiatry》2000,34(6):963-966
OBJECTIVE: The experience of lifetime trauma among homeless women in the USA is well documented. Less information is available concerning homeless men. There are no prevalence studies concerning lifetime trauma among homeless people in Australia. Our aim was to assess the lifetime prevalence of trauma as reported by homeless men and women in Sydney. METHOD: We interviewed 119 men and 38 women who were visiting or residing at the seven largest refuges for homeless people in inner Sydney, using the lifetime trauma section of the Composite International Diagnostic Interview. RESULTS: All women and over 90% of men reported at least one event of trauma in their life. Fifty-eight per cent suffered serious physical assault and 55% witnessed someone being badly injured or killed. Half the women and 10% of men reported that they had been raped. CONCLUSION: The experience of at least one lifetime event of trauma is almost universal among homeless people in Sydney and is considerably higher than for the USA general population. Reasons for such high prevalence rates are discussed. Depression and posttraumatic stress disorder are associated with a history of trauma. Health professionals need to be aware of past events of trauma among individuals who are homeless. 相似文献
6.
Background: The study aimed to assess the prevalence of alcohol and drug use disorders among homeless people in inner Sydney, to compare
the Australian findings with the international literature and to examine treatment seeking. Method: Two hundred and ten homeless men and women randomly selected from the dining rooms of inner Sydney refuges were interviewed.
DSM-IV diagnoses over the past 12 months were based on the Composite International Diagnostic Interview (CIDI). Results: Half the homeless men and 15% of the women had a diagnosis of alcohol use disorder in the past 12 months. One in five had
an opiate use disorder, one in five a cannabis use disorder and one in ten a sedative or stimulant use disorder. Conclusions: Drug use disorders were more prevalent in this Australian sample than in comparable international studies.
Accepted: 31 May 2000 相似文献
7.
Cigarette smoking and risk of non-Hodgkin lymphoma: a pooled analysis from the International Lymphoma Epidemiology Consortium (interlymph). 总被引:5,自引:0,他引:5
Lindsay M Morton Patricia Hartge Theodore R Holford Elizabeth A Holly Brian C H Chiu Paolo Vineis Emanuele Stagnaro Eleanor V Willett Silvia Franceschi Carlo La Vecchia Ann Maree Hughes Wendy Cozen Scott Davis Richard K Severson Leslie Bernstein Susan T Mayne Fred R Dee James R Cerhan Tongzhang Zheng 《Cancer epidemiology, biomarkers & prevention》2005,14(4):925-933
BACKGROUND: The International Lymphoma Epidemiology Consortium (InterLymph) provides an opportunity to analyze the relationship between cigarette smoking and non-Hodgkin lymphoma with sufficient statistical power to consider non-Hodgkin lymphoma subtype. The results from previous studies of this relationship have been inconsistent, likely due to the small sample sizes that arose from stratification by disease subtype. To clarify the role of cigarette smoking in the etiology of non-Hodgkin lymphoma, we conducted a pooled analysis of original patient data from nine case-control studies of non-Hodgkin lymphoma conducted in the United States, Europe, and Australia. METHODS: Original data were obtained from each study and uniformly coded. Risk estimates from fixed-effects and two-stage random-effects models were compared to determine the impact of interstudy heterogeneity. Odds ratios (OR) and 95% confidence intervals (95% CI) were derived from unconditional logistic regression models, controlling for study center, age, sex, and race. RESULTS: In our pooled study population of 6,594 cases and 8,892 controls, smoking was associated with slightly increased risk estimates (OR, 1.07; 95% CI, 1.00-1.15). Stratification by non-Hodgkin lymphoma subtype revealed that the most consistent association between cigarette smoking and non-Hodgkin lymphoma was observed among follicular lymphomas (n = 1452). Compared with nonsmokers, current smokers had a higher OR for follicular lymphoma (1.31; 95% CI, 1.12-1.52) than former smokers (1.06; 95% CI, 0.93-1.22). Current heavy smoking (> or = 36 pack-years) was associated with a 45% increased OR for follicular lymphoma (1.45; 95% CI, 1.15-1.82) compared with nonsmokers. CONCLUSIONS: Cigarette smoking may increase the risk of developing follicular lymphoma but does not seem to affect risk of the other non-Hodgkin lymphoma subtypes we examined. Future research is needed to determine the biological mechanism responsible for our subtype-specific results. 相似文献
8.
Taking the guesswork out of supplying multicompartment compliance aids: do pharmacists require further guidance on medication stability? 下载免费PDF全文
9.
S. Wayne Miles Janie Sheridan Bruce Russell Rob Kydd Amanda Wheeler Carina Walters Greg Gamble Peta Hardley Maree Jensen Kimmo Kuoppasalmi Pekka Tuomola Jaana Föhr Outi Kuikanmäki Helena Vorma Raimo Salokangas Antti Mikkonen Mika Kallio Jussi Kauhanen Vesa Kiviniemi Jari Tiihonen 《Addiction (Abingdon, England)》2013,108(7):1279-1286
10.