全文获取类型
收费全文 | 178篇 |
免费 | 6篇 |
国内免费 | 11篇 |
专业分类
儿科学 | 32篇 |
妇产科学 | 3篇 |
基础医学 | 11篇 |
口腔科学 | 7篇 |
临床医学 | 39篇 |
内科学 | 35篇 |
皮肤病学 | 3篇 |
神经病学 | 2篇 |
特种医学 | 15篇 |
外科学 | 18篇 |
综合类 | 9篇 |
预防医学 | 7篇 |
眼科学 | 2篇 |
药学 | 5篇 |
肿瘤学 | 7篇 |
出版年
2024年 | 1篇 |
2023年 | 1篇 |
2022年 | 2篇 |
2021年 | 5篇 |
2020年 | 2篇 |
2019年 | 5篇 |
2018年 | 2篇 |
2016年 | 2篇 |
2015年 | 2篇 |
2014年 | 5篇 |
2013年 | 3篇 |
2012年 | 3篇 |
2011年 | 5篇 |
2010年 | 12篇 |
2009年 | 8篇 |
2008年 | 7篇 |
2007年 | 11篇 |
2006年 | 5篇 |
2005年 | 2篇 |
2004年 | 5篇 |
2003年 | 3篇 |
2001年 | 11篇 |
2000年 | 4篇 |
1999年 | 4篇 |
1998年 | 10篇 |
1997年 | 10篇 |
1996年 | 12篇 |
1995年 | 5篇 |
1994年 | 8篇 |
1993年 | 5篇 |
1992年 | 3篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 3篇 |
1988年 | 3篇 |
1987年 | 3篇 |
1986年 | 2篇 |
1985年 | 3篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1980年 | 3篇 |
1978年 | 1篇 |
1977年 | 3篇 |
1976年 | 2篇 |
1969年 | 1篇 |
1967年 | 1篇 |
排序方式: 共有195条查询结果,搜索用时 0 毫秒
91.
Cellular phenotypes of normal and leukemic hemopoietic cells determined by analysis with selected antibody combinations 总被引:4,自引:0,他引:4
Individual leukemic cells and the corresponding rare normal cell types in nonleukemic bone marrow were analyzed with various combinations of antisera (labeled with different fluorochromes: TRITC and FITC). Double staining for membrane Ia-like molecules (TRITC) and nuclear terminal transferase (FITC) was a very useful combination that distinguished common non-T, non-B ALL (Ia+,TdT+) and thymic ALL (Ia-,TdT+) from the rare cases of B ALL (Ia+,TdT-) and from AML (frequently Ia+, TdT-; in some cases Ia-, TdT-). Additional antisera (such as anti-ALL, anti- HuTLA, anti-immunoglobulin reagents, etc.) confirmed the diagnosis and further characterized the leukemic blasts. Ia+,TdT+ cells could be observed in low numbers in normal and nonleukemic regenerating marrow and were probably normal precursor cells; this reagent combinations was, therefore, not useful for monitoring residual non-T, non-B ALL blasts in treated patients. Other marker combinations detecting pre-B ALL blasts (double staining for cytoplasmic IgM and nuclear TdT) and Thy-ALL blasts (HuTLA+,TdT+) were, however, virtually leukemia specific in the bone marrow and could be used to effectively monitor residual leukemic cells throughout the disease. These combined single-cell assays are not only economical and informative but are also important for assessing the heterogeneity of leukemia and for standardizing new mouse or rat monoclonal antibodies for diagnosis. 相似文献
92.
93.
94.
Madeleine R. Heldman Olivia S. Kates Kassem Safa Camille N. Kotton Sarah J. Georgia Julie M. Steinbrink Barbara D. Alexander Marion Hemmersbach-Miller Emily A. Blumberg Ashrit Multani Brandy Haydel Ricardo M. La Hoz Lisset Moni Yesabeli Condor Sandra Flores Carlos G. Munoz Juan Guitierrez Esther I. Diaz Daniela Diaz Rodrigo Vianna Giselle Guerra Matthias Loebe Robert M. Rakita Maricar Malinis Marwan M. Azar Vagish Hemmige Margaret E. McCort Zohra S. Chaudhry Pooja P. Singh Kailey Hughes Kramer Arzu Velioglu Julie M. Yabu Jose A. Morillis Sapna A. Mehta Sajal D. Tanna Michael G. Ison Ariella C. Derenge David van Duin Adrienne Maximin Carlene Gilbert Jason D. Goldman Erika D. Lease Cynthia E. Fisher Ajit P. Limaye 《American journal of transplantation》2022,22(1):279-288
Mortality among patients hospitalized for COVID-19 has declined over the course of the pandemic. Mortality trends specifically in solid organ transplant recipients (SOTR) are unknown. Using data from a multicenter registry of SOTR hospitalized for COVID-19, we compared 28-day mortality between early 2020 (March 1, 2020–June 19, 2020) and late 2020 (June 20, 2020–December 31, 2020). Multivariable logistic regression was used to assess comorbidity-adjusted mortality. Time period of diagnosis was available for 1435/1616 (88.8%) SOTR and 971/1435 (67.7%) were hospitalized: 571/753 (75.8%) in early 2020 and 402/682 (58.9%) in late 2020 (p < .001). Crude 28-day mortality decreased between the early and late periods (112/571 [19.6%] vs. 55/402 [13.7%]) and remained lower in the late period even after adjusting for baseline comorbidities (aOR 0.67, 95% CI 0.46–0.98, p = .016). Between the early and late periods, the use of corticosteroids (≥6 mg dexamethasone/day) and remdesivir increased (62/571 [10.9%] vs. 243/402 [61.5%], p < .001 and 50/571 [8.8%] vs. 213/402 [52.2%], p < .001, respectively), and the use of hydroxychloroquine and IL-6/IL-6 receptor inhibitor decreased (329/571 [60.0%] vs. 4/492 [1.0%], p < .001 and 73/571 [12.8%] vs. 5/402 [1.2%], p < .001, respectively). Mortality among SOTR hospitalized for COVID-19 declined between early and late 2020, consistent with trends reported in the general population. The mechanism(s) underlying improved survival require further study.
95.
96.
97.
LF Cheng KF Ma WC Fan AWT Yung TM Li CS Wong 《Journal of Medical Imaging and Radiation Oncology》2010,54(1):26-34
Haepatocellular carcinoma (HCC) is the most common primary liver malignancy, representing the fifth most common cancer in the world. Without treatment, the median survival of HCC patients has been reported to be 8 weeks from symptomatic presentation. Transarterial chemoembolisation is widely used to manage unresectable HCCs. However, when a tumour is large or locates near the liver capsule, it may receive supplies from vessels other than hepatic arteries. In this paper, we discuss the anatomy of possible extrahepatic collateral arterial supplies of HCCs. 相似文献
98.
The objective of this study was to determine the accuracy of two brief surveys for detection of male victims of intimate partner violence (IPV) in the Emergency Department (ED). This study was conducted prospectively in an urban, teaching hospital over 6 weeks; all men triaged to the acute care portion of the ED were eligible for enrollment. Exclusion criteria included age less than 18 years, refusal, altered mental status, or condition requiring lifesaving intervention. Data included demographics, Revised Conflict Tactics Scale (CTS2) score, and scores on two brief surveys of IPV: the HITS (“Hurt/Insult/Threaten/Scream”) scale and the Partner Violence Screen (PVS). The CTS2 uses previously validated population scores for female to male psychological aggression and physical assault. Neither the HITS nor the PVS has been validated for use in the ED for detecting male victims of IPV. There were 116 men approached for enrollment; nearly half completed all surveys. Mean age was 41.8 years, and the sample was 73% African-American and 20% white. Thirty-nine percent had positive scores on the psychological aggression portion of the CTS2, whereas 20% had positive scores on the physical assault subscale. Comparing the HITS and PVS to both the psychological and physical portions of the CTS2 resulted in sensitivities of 30–45% and specificities of 83–88%. False negative rates on the two brief surveys ranged from 14–33%, and negative predictive values and positive likelihood ratios were low. Neither the HITS nor the PVS accurately screens male victims of IPV in the ED. Further research is needed to develop a valid, brief screening test to identify male victims of IPV in an acute setting. © 2006 Elsevier Inc. 相似文献
99.
The aim of this study was to examine the nature of the association between breastfeeding, complementary feeding and growth in a random sample of infants from Denmark, where the prevalence of breastfeeding is high. A semiquantitative food frequency questionnaire and a questionnaire on breastfeeding duration and on weight and length measurements taken at the infant welfare visit at 5 and 10 months were sent to 590 families with 10-month-old infants. A total of 339 infants with complete growth data were included in the analyses. When controlling for mid-parental height and birth weight infants breastfed for ≥ 7 months gained 198 g less in weight ( p < 0:01) and 7 mm less in length ( p < 0:01) during the period from 5 to 10 months than infants breastfed for < 7 months. Controlling for these effects, the 10% of the sample with the highest protein intake (i.e. ≥16 energy percentage) gained 262g more than those with a lower protein intake ( p = 0:03). Infants breastfed for ≥ 7 months received significantly less cow's milk ( p < 0:01), and fewer meat-containing dishes ( p < 0:05) and sweets or cakes ( p < 0:01), which may partly explain the effect of breastfeeding. The long-term consequences of this moderate difference in growth velocity are unknown and the findings should not be used to advocate against breastfeeding during late infancy. 相似文献
100.