全文获取类型
收费全文 | 186篇 |
免费 | 12篇 |
专业分类
儿科学 | 11篇 |
妇产科学 | 3篇 |
基础医学 | 12篇 |
口腔科学 | 1篇 |
临床医学 | 13篇 |
内科学 | 63篇 |
神经病学 | 9篇 |
特种医学 | 1篇 |
外科学 | 15篇 |
综合类 | 15篇 |
一般理论 | 1篇 |
预防医学 | 47篇 |
眼科学 | 1篇 |
药学 | 4篇 |
肿瘤学 | 2篇 |
出版年
2024年 | 1篇 |
2023年 | 6篇 |
2022年 | 8篇 |
2021年 | 12篇 |
2020年 | 8篇 |
2019年 | 10篇 |
2018年 | 5篇 |
2017年 | 5篇 |
2016年 | 9篇 |
2015年 | 9篇 |
2014年 | 6篇 |
2013年 | 4篇 |
2012年 | 21篇 |
2011年 | 17篇 |
2010年 | 9篇 |
2009年 | 6篇 |
2008年 | 7篇 |
2007年 | 7篇 |
2006年 | 10篇 |
2005年 | 3篇 |
2004年 | 3篇 |
2003年 | 10篇 |
2002年 | 5篇 |
2001年 | 6篇 |
2000年 | 4篇 |
1999年 | 1篇 |
1998年 | 2篇 |
1994年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1987年 | 1篇 |
排序方式: 共有198条查询结果,搜索用时 437 毫秒
181.
J M Ekue D E Phiri U K Sheth M Mukunyandela 《Bulletin of the World Health Organization》1987,65(3):369-373
A total of 100 male Zambian patients with symptomatic falciparum malaria were treated with either two tablets of mefloquine plus sulfadoxine—pyrimethamine (Fansimef) or three tablets of sulfadoxine—pyrimethamine (Fansidar) as a single dose. The patients were kept under observation from day 0 (day of treatment) to day 28 and all were cured. An S-type of response was seen in all patients; one patient in the Fansimef group inexplicably remained positive for Plasmodium falciparum trophozoites until day 6. There were no cases of recrudescence. 相似文献
182.
Hannock Tweya Caryl Feldacker Elizabeth Breeze Andreas Jahn Lisa Blake Haddad Anne Ben-Smith Thom Chaweza Sam Phiri 《AIDS and behavior》2013,17(2):471-478
Although previous studies investigated pregnancy rates among women on antiretroviral therapy (ART), incidence of, and factors associated with pregnancy among these women remain poorly understood. We, therefore, conducted a retrospective cohort study at a large public HIV clinic in Lilongwe, Malawi, between July 2007 and December 2010. At each clinic visit, pregnancy status was assessed. Time to event analysis was conducted using Poisson regression. Among 4,738 women, 589 pregnancies were observed. Pregnancy incidence was 9.3/100 person-years. After 6 months on ART, women on ART had similar total fertility rates to women in the urban population. In multivariable analysis, increasing age and advanced WHO clinical stage were associated with decreased probability of becoming pregnant while higher body mass index and longer time on ART were associated with increased probability of becoming pregnant. We recommend that ART clinics integrate comprehensive family planning services to address reproductive health needs among women on ART. 相似文献
183.
184.
Gayathri Delanerolle Shanaya Rathod Kathryn Elliot Rema Ramakrishnan Tony Thayanandan Natasha Sandle Nyla Haque Vanessa Raymont Peter Phiri 《World Journal of Psychiatry》2021,11(3):58-62
Pandemics disrupt clinical trials worldwide, with lasting effects on research. It can severely impact clinical trialists ability to conduct safe and ethically uncompromised trials. Hence, the mounting pressure results in ethically and morally distressing decisions faced by clinical trial professionals during pandemic situations. Whilst clinical trialists attempt to think about preparedness and responses during a pandemic, the need to have an ethical framework that has real-world applicability is imperative. Pandemics are a challenging time for all, however, the safety and access to support for clinical trialists and patients within clinical trials should be at the forefront for their organisations and the government. 相似文献
185.
186.
Ralf Weigel Mina C. Hosseinipour Caryl Feldacker Dickman Gareta Hannock Tweya Jane Chiwoko Joe Gumulira Mike Kalulu Innocent Mofolo Esmie Kamanga Gertrude Mwale Angela Kadzakumanja Edward Jere Sam Phiri 《Tropical medicine & international health : TM & IH》2012,17(6):751-759
Objectives HIV‐infected women identified through antenatal care (ANC) often fail to access antiretroviral treatment (ART), leaving them and their infants at risk for declining health or HIV transmission. We describe results of measures to improve uptake of ART among eligible pregnant women. Methods Between October 2006 and December 2009, interventions implemented at ANC and ART facilities in urban Lilongwe aimed to better link services for women with CD4 counts <250/μl. A monitoring system followed women referred for ART to examine trends and improve practices in referral completion, on‐time ART initiation and ART retention. Results Six hundred and twelve women were ART eligible: 604 (99%) received their CD4 result, 344 (56%) reached the clinic, 286 (47%) started ART while pregnant and 261 (43%) were either alive on ART or transferred out after 6 months. Between 2006 and 2009, the median (IQR) time between CD4 blood draw and ART initiation fell from 41 days (17, 349) to 15 days (7,42) (P = 0.183); the proportion of eligible individuals starting ART while pregnant and retained for 6 months improved from 17% to 65% (P < 0.001). Delays generally shortened within the continuum of care from 2006 to 2009; however, time from CD4 blood draw to ART referral increased from 7 to 14 days. Conclusions Referrals between facilities and delays through CD4 count measurements create bottlenecks in patient care. Retention improved over time, but delays within the linkage process remained. ART initiation at ANC plus use of point‐of‐care CD4 tests may further enhance ART uptake. 相似文献
187.
Phiri K Esan M van Hensbroek MB Khairallah C Faragher B ter Kuile FO 《The Lancet infectious diseases》2012,12(3):191-200
188.
Lutterloh E Likaka A Sejvar J Manda R Naiene J Monroe SS Khaila T Chilima B Mallewa M Kampondeni SD Lowther SA Capewell L Date K Townes D Redwood Y Schier JG Nygren B Tippett Barr B Demby A Phiri A Lungu R Kaphiyo J Humphrys M Talkington D Joyce K Stockman LJ Armstrong GL Mintz E 《Clinical infectious diseases》2012,54(8):1100-1106
189.
Katie R Maggard Sisa Hatwiinda Jennifer B Harris Winifreda Phiri Annika Krüüner Kaunda Kaunda Stephanie M Topp Nathan Kapata Helen Ayles Chisela Chileshe German Henostroza Stewart E Reid 《Bulletin of the World Health Organization》2015,93(2):93-101
Objective
To improve the Zambia Prisons Service’s implementation of tuberculosis screening and human immunodeficiency virus (HIV) testing.Methods
For both tuberculosis and HIV, we implemented mass screening of inmates and community-based screening of those residing in encampments adjacent to prisons. We also established routine systems – with inmates as peer educators – for the screening of newly entered or symptomatic inmates. We improved infection control measures, increased diagnostic capacity and promoted awareness of tuberculosis in Zambia’s prisons.Findings
In a period of 9 months, we screened 7638 individuals and diagnosed 409 new patients with tuberculosis. We tested 4879 individuals for HIV and diagnosed 564 cases of infection. An additional 625 individuals had previously been found to be HIV-positive. Including those already on tuberculosis treatment at the time of screening, the prevalence of tuberculosis recorded in the prisons and adjacent encampments – 6.4% (6428/100 000) – is 18 times the national prevalence estimate of 0.35%. Overall, 22.9% of the inmates and 13.8% of the encampment residents were HIV-positive.Conclusion
Both tuberculosis and HIV infection are common within Zambian prisons. We enhanced tuberculosis screening and improved the detection of tuberculosis and HIV in this setting. Our observations should be useful in the development of prison-based programmes for tuberculosis and HIV elsewhere. 相似文献190.
The electrical properties of silicone composite films filled with silver (Ag) nanoparticle-decorated multi-walled carbon nanotubes (MWNT) prepared by solution processing are investigated. Pristine MWNT is oxidized and converted to the acyl chloride-functionalized MWNT using thionyl chloride, which is subsequently reacted with amine-terminated poly(dimethylsiloxane) (APDMS). Thereafter, APDMS-modified MWNT are decorated with Ag nanoparticles and then reacted with a poly(dimethylsiloxane) solution to form Ag-decorated MWNT silicone (Ag-decorated MWNT-APDMS/Silicone) composite. The morphological differences of the silicone composites containing Ag-decorated MWNT and APDMS-modified MWNT are observed by transmission electron microscopy (TEM) and the surface conductivities are measured by the four-probe method. Ag-decorated MWNT-APDMS/Silicone composite films show higher surface electrical conductivity than MWNT/silicone composite films. This shows that the electrical properties of Ag-decorated MWNT-APDMS/silicone composite films can be improved by the surface modification of MWNT with APDMS and Ag nanoparticles, thereby expanding their applications. 相似文献