全文获取类型
收费全文 | 891篇 |
免费 | 26篇 |
国内免费 | 10篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 43篇 |
妇产科学 | 7篇 |
基础医学 | 64篇 |
口腔科学 | 10篇 |
临床医学 | 59篇 |
内科学 | 127篇 |
皮肤病学 | 29篇 |
神经病学 | 4篇 |
特种医学 | 99篇 |
外科学 | 106篇 |
综合类 | 261篇 |
预防医学 | 36篇 |
眼科学 | 4篇 |
药学 | 31篇 |
肿瘤学 | 46篇 |
出版年
2023年 | 2篇 |
2022年 | 3篇 |
2021年 | 8篇 |
2020年 | 3篇 |
2019年 | 6篇 |
2018年 | 8篇 |
2017年 | 7篇 |
2016年 | 8篇 |
2015年 | 28篇 |
2014年 | 14篇 |
2013年 | 18篇 |
2012年 | 18篇 |
2011年 | 16篇 |
2010年 | 48篇 |
2009年 | 45篇 |
2008年 | 34篇 |
2007年 | 44篇 |
2006年 | 61篇 |
2005年 | 43篇 |
2004年 | 57篇 |
2003年 | 25篇 |
2002年 | 28篇 |
2001年 | 20篇 |
2000年 | 29篇 |
1999年 | 30篇 |
1998年 | 40篇 |
1997年 | 50篇 |
1996年 | 52篇 |
1995年 | 32篇 |
1994年 | 29篇 |
1993年 | 9篇 |
1992年 | 9篇 |
1991年 | 5篇 |
1990年 | 7篇 |
1989年 | 7篇 |
1988年 | 15篇 |
1987年 | 9篇 |
1986年 | 10篇 |
1985年 | 7篇 |
1984年 | 11篇 |
1983年 | 4篇 |
1982年 | 7篇 |
1981年 | 6篇 |
1980年 | 4篇 |
1978年 | 3篇 |
1977年 | 4篇 |
1976年 | 2篇 |
1975年 | 2篇 |
排序方式: 共有927条查询结果,搜索用时 11 毫秒
61.
S Ashraff AK Gupta S Chaudhury S Sudarsanan MSVK Raju SK Salujha K Srivastava 《Medical Journal Armed Forces India》2004,60(2):109-112
A total of 50 patients undergoing cancer treatment at Malignant Disease Treatment Centre were included in the present study aimed at evaluating the psychological status of cancer patients. All patients filled a specially designed proforma and the following psychological questionnaires : General Health Questionnaire, Carroll Rating Scale for Depression, State-Trait Anxiety Inventory, PGI General Well-being Scale and Quality of Life Scale. Analysis of the results showed that 22 (44%) of the cancer patients had psychiatric disorders and this number had reduced to 12 (24%) after therapy. The difference was statistically significant. Psychiatric treatment also resulted in a statistically significant reduction in level of depression as measured by Carroll Rating Scale for depression. Short term psychiatric treatment was found to be very useful in treating psychiatric morbidity and depression in cancer patients.Key Words: Cancer, Depression, Psychiatric morbidity 相似文献
62.
P?KumarEmail author S?Reddy D?Kulkarni C?Raghvendra SK?Pranav N?Thakur U?Jadhav A?Tendolkar 《Indian Journal of Thoracic and Cardiovascular Surgery》2003,19(3):155-156
Conclusion The use of a pulse oximeter, which is readily available in the ICU, can be of immense benefit to determine the status of distal
limb perfusion in neonates and children who are suspected of having a vascular compromise, and the pulsations cannot be appreciated
due to the presence of limb edema.
Limb warmth and capillary filling are the primary indicators of vascularity but may be misleading in some patients. The presence
of poor quality tracings or absent tracings is a definite indicator of significant ischemia.
The use of a pulse oximeter, for determination of oxygen saturation, was declared by Severinghaus and Astrup to be “arguably
the most significant technologic advance ever made in monitoring the well being of patients during anaesthesia, recovery and
critical care. Perhaps the use of the pulse oximeter for determination of distal perfusion can further augment the statement.
Editor Note The authors are to be congratulated for their observations which are clinically relevant. However we urge them to continue
their study and obtain meaningful data, with proper statistical analysis. For the time being these observations may be considered
preliminary. 相似文献
63.
Malaria causes significant morbidity and mortality world-wide. Both asymptomatic and symptomatic malarial infections cause immune depression, which predisposes the host to infection with other microorganisms. Specific clinical investigations have shown, for example, that those with malaria-attributable anaemia are particularly likely to have Salmonella septicaemia, and that asymptomatic malarial infection causes diminished response to polysaccharide vaccine. The results of clinical studies and experiments with animal models have revealed that malarial parasites can decrease their vertebrate host's effective humoral and cellular immune responses. In this review, the possible ways in which this malaria-induced immune impairment could affect the host's response to Mycobacterium tuberculosis infection are considered. Could malarial infection be one of the reasons for the persistence of tuberculosis in malaria-endemic regions? 相似文献
64.
SK. Das A Bhowmick S. Mukherjee L. M. Ghosh S. Banerjee 《Indian journal of otolaryngology and head and neck surgery》1999,51(3):66-68
Dentigerous cyst - a cyst of dental origin, though common in lower jaw is relatively uncommon in upper jaw. Here a 14 years, F, presented with huge swelling of unilateral maxilla and clinicoradiologically diagnosed as dentigerous cyst is being reported along with brief review of literature. 相似文献
65.
66.
D Arora TK Bhattacharyya SK Kathpalia SPS Kochar GS Sandhu VSM BK Goyal 《Medical Journal Armed Forces India》2007,63(1):7-11
Background
The aim of this study was to assess the role of middle cerebral artery peak systolic velocity (MCA-PSV), as measured by doppler ultrasound, in detecting foetal anaemia in Rh- isoimmunised pregnancies. Intra-uterine foetal blood transfusion was performed in such anaemic foetuses to tide over the crisis of foetal immaturity till considered fit for extra-uterine survival.Methods
Rh-isoimmunised pregnancies reporting to a tertiary institute from 2003 to 2005, were screened by doppler ultrasound to estimate MCA-PSV to detect foetal anaemia. If the foetus developed MCA-PSV of more than 1.5 multiple of median (MoM) for the gestational age, foetal blood sampling through cordocentesis was performed to confirm foetal anaemia, followed by intrauterine foetal blood transfusion to all anaemic foetuses at the same sitting. Neonatal outcome was evaluated by recording gestational age at the time of delivery, duration of gestational time gained and need for blood transfusion in the neonatal period.Results
A total of thirteen isoimmunised pregnancies were evaluated. Three pregnancies did not require in-utero foetal blood transfusion. Twenty-one intrauterine foetal blood transfusions were performed in the remaining ten patients. Five received blood transfusion in the neonatal period. Intra uterine foetal death occurred in one grossly hydropic foetus and favourable neonatal outcome was recorded in the rest.Conclusion
The clinical outcome of these pregnancies justifies the use of doppler studies of MCA-PSV in detecting foetal anaemia and intra uterine foetal blood transfusion is the only hope of prolonging pregnancy and salvaging such foetuses.Key Words: Rh-isoimmunisation, Middle cerebral artery peak systolic velocity, Foetal anaemia, Foetal blood transfusion 相似文献67.
68.
SK Bhattacharya MK Bhattacharya B Manna D Dutta A Deb P Dutta AG Goswami A Dutta S Sarkar A Mukhopadhaya T Krishnan TN Naik GB Nair 《Acta paediatrica (Oslo, Norway : 1992)》1995,84(2):160-164
In a case-control study to understand the risk factors for development of life-threatening dehydration, a total of 379 children comprising 243 cases (moderate or severe dehydration) and 136 controls (non or mild dehydration) up to 2 years of age suffering from acute watery diarrhoea were studied. By univariate analysis, the presence of vibrios in stool, withdrawal of breast feeding during diarrhoea, not giving fluids, including oral rehydration solution (ORS), during diarrhoea, frequent purging (> 8/ day), vomiting (> 2/day) and undernutrition were identified as risk factors. However, by multivariate analysis after controlling for confounders, withdrawal of breast feeding during diarrhoea (odds ratio (OR) = 6.8, p < 0.00001) and not giving ORS during diarrhoea (OR = 2.1, p < 0.006) were identified as significant risk factors. The confounding variables which also contributed significantly to increasing the risk were age (≤ 12 months; OR = 2.7, p = 0.001), frequent purging (> 8/day; OR = 4.1, p < 0.00001), vomiting (> 2/day; OR = 2.4, p = 0.001) and severe undernutrition (%median <60 weight-for-age of Indian Academy of Paediatrics classification; OR = 3.1, p = 0.001). We feel that these findings will be useful for Global and National Diarrhoeal Diseases Control Programmes for formulating intervention strategies for preventing death due to diarrhoeal dehydration. 相似文献
69.
70.
Sonoelasticity imaging of prostate cancer: in vitro results 总被引:2,自引:0,他引:2