全文获取类型
收费全文 | 866篇 |
免费 | 45篇 |
国内免费 | 9篇 |
专业分类
耳鼻咽喉 | 16篇 |
儿科学 | 41篇 |
妇产科学 | 20篇 |
基础医学 | 74篇 |
口腔科学 | 21篇 |
临床医学 | 60篇 |
内科学 | 191篇 |
皮肤病学 | 6篇 |
神经病学 | 81篇 |
特种医学 | 15篇 |
外科学 | 127篇 |
综合类 | 15篇 |
预防医学 | 72篇 |
眼科学 | 5篇 |
药学 | 65篇 |
中国医学 | 3篇 |
肿瘤学 | 108篇 |
出版年
2024年 | 1篇 |
2023年 | 8篇 |
2022年 | 22篇 |
2021年 | 39篇 |
2020年 | 31篇 |
2019年 | 41篇 |
2018年 | 45篇 |
2017年 | 23篇 |
2016年 | 28篇 |
2015年 | 36篇 |
2014年 | 61篇 |
2013年 | 75篇 |
2012年 | 89篇 |
2011年 | 65篇 |
2010年 | 30篇 |
2009年 | 46篇 |
2008年 | 58篇 |
2007年 | 44篇 |
2006年 | 45篇 |
2005年 | 26篇 |
2004年 | 24篇 |
2003年 | 20篇 |
2002年 | 30篇 |
2001年 | 2篇 |
2000年 | 3篇 |
1999年 | 2篇 |
1998年 | 4篇 |
1997年 | 3篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1994年 | 2篇 |
1993年 | 1篇 |
1988年 | 1篇 |
1986年 | 2篇 |
1985年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1967年 | 1篇 |
1964年 | 1篇 |
1963年 | 1篇 |
1961年 | 1篇 |
排序方式: 共有920条查询结果,搜索用时 11 毫秒
91.
Namavar Jahromi B Ahmadi N Cohan N Jahromi MR 《Taiwanese journal of obstetrics & gynecology》2011,50(3):301-305
ObjectiveThe aim of this study was to compare the neonatal umbilical artery blood gas values, C-reactive protein (CRP) levels, nucleated red blood cells (NRBCs), and white blood cells (WBCs) differential counts between offspring’s of the diabetic mothers who needed insulin during pregnancy and normal mothers after cesarean delivery.Materials and MethodsA prospective study was performed involving 68 pregnant diabetic women who needed insulin during pregnancy and 410 healthy pregnant women and their neonates with gestational ages between 35 weeks and 41 weeks. Arterial blood was analyzed for pH and blood gas values and venous blood was analyzed for CRP level, NRBC, and WBC differential counts.ResultsThe mean NRBC count in the neonates of diabetic mothers and healthy mothers was 560 ± 985/μL and 202 ± 281/μL, respectively (p < 0.001). The umbilical arterial blood gas showed a lower pH (7.22 ± 0.07 vs. 7.24 ± 0.04, p = 0.004) and a higher pCO2 (49.33 ± 10.08 vs. 47 ± 8.67, p = 0.045) in neonates of diabetic mothers compared with the controls. Values of pO2, HCO3?, base excess, WBC differential counts, and CRP levels were almost similar in the two groups.ConclusionLower pH, higher pCO2, and elevated NRBC counts were found in the neonates of diabetic mothers that may be suggestive of chronic intrauterine acidosis. 相似文献
92.
The neglected femoral neck fracture in young adults: review of a challenging problem 总被引:2,自引:0,他引:2 下载免费PDF全文
A neglected femoral neck fracture is one where there has been a delay of more than 30 days to seek medical help from the time of the original injury. Among the spectrum of femoral neck fractures, the neglected fracture in a young adult (age <60 years) is one of the most challenging to treat if femoral head salvage is attempted. The main complication is avascular necrosis (AVN) of the femoral head with most reported incidences being <15% (range 0% to 67%), which is similar to the complication rate with non-neglected femoral neck fractures. 相似文献
93.
Surgical treatment of tendon ruptures and lacerations is currently the most common therapeutic modality. Tendon repair in the hand involves a slow repair process, which results in inferior repair tissue and often a failure to obtain full active range of motion. The initial stages of repair include the formation of functionally weak tissue that is not capable of supporting tensile forces that allow early active range of motion. Immobilization of the digit or limb will promote faster healing but inevitably results in the formation of adhesions between the tendon and tendon sheath, which leads to friction and reduced gliding. Loading during the healing phase is critical to avoid these adhesions but involves increased risk of rupture of the repaired tendon. Understanding the biology and organization of the native tendon and the process of morphogenesis of tendon tissue is necessary to improve current treatment modalities. Screening the genes expressed during tendon morphogenesis and determining the growth factors most crucial for tendon development will likely lead to treatment options that result in superior repair tissue and ultimately improved functional outcomes. 相似文献
94.
95.
Senthilmani Rajendran Jian Han Lim Kohgulakuhan Yogalingam Thomas George Kallarakkal Rosnah Binti Zain Ruwan Duminda Jayasinghe Jyotsna Rimal Alexander Ross Kerr Rahmi Amtha Karthikeya Patil Roshan Alex Welikala Ying Zhi Lim Paolo Remagnino John Gibson Wanninayake Mudiyanselage Tilakaratne Chee Sun Liew Yi-Hsin Yang Sarah Ann Barman Chee Seng Chan Sok Ching Cheong 《Oral diseases》2023,29(5):2230-2238
96.
97.
Mark W Russo Joseph A Galanko Roshan Shrestha Michael W Fried Paul Watkins 《Liver transplantation》2004,10(8):1018-1023
Studies of acute liver failure from drugs have included cases mostly attributed to acetaminophen (APAP) but have reported limited data on other drugs. We used the United Network for Organ Sharing (UNOS) liver transplant database from 1990 to 2002 to identify recipients and estimate a U.S. population-based rate of liver transplantation due to acute liver failure from drugs. Patients were identified if their diagnosis was acute hepatic necrosis from an implicated drug at the time of transplant. Liver transplantation for drug hepatotoxicity accounted for 15% of liver transplants for acute liver failure over the study period. In our cohort (n = 270), 206 (76%) recipients were female. APAP alone, or in combination with another drug, accounted for 133 (49%) cases. In the non-acetaminophen (non-APAP) group (n = 137), the most frequently implicated drugs were: isoniazid, n = 24 (17.5%); propylthiouracil, n = 13 (9.5%); and phenytoin and valproate in 10 (7.3%) cases each. One-year patient and graft survival for the entire cohort was 77 and 71%, respectively. Among Caucasians (n = 206) and African-Americans (n = 48), APAP only was implicated in 110 (53%) patients and 12 (25%) patients, respectively, and non-APAP drugs were implicated in 96 (47%) patients and 36 (75%) patients, respectively (P =.0004). Among African-Americans in the non-APAP group, 28 (78%) were women. In conclusion four drugs were implicated in 42% of patients undergoing liver transplantation for acute liver failure due to drugs other than APAP. The increased frequency of African-American women undergoing liver transplantation for non-APAP drug induced liver injury warrants further study. 相似文献
98.
Iyer YS Patwardhan M Pujari V Shinde G Keertikar P Kulkarni S Colah RB Mohanty D 《Hemoglobin》2003,27(4):229-234
Fetal hemoglobin (Hb F) is a major hemoglobin (Hb) component at birth. Hb F levels are markedly elevated in a number of inherited and acquired disorders. Measurement of Hb F levels is usually carried out by alkali denaturation which is not very accurate for low and high values. An accurate estimation of Hb F, and also of F cells, is desired in many hematological disorders like sickle cell disease, in monitoring the efficacy of hydroxyurea (HU) therapy, to assess feto-maternal hemorrhage (FMH) during pregnancy and in the postpartum period. We have raised a murine monoclonal antibody to human Hb F, that accurately measures the number of F cells by flow cytometry. The antibody was found to be potent and specific for F cells. 相似文献
99.
Goldstein MS Brown ER Ballard-Barbash R Morgenstern H Bastani R Lee J Gatto N Ambs A 《Evidence-based complementary and alternative medicine : eCAM》2005,2(4):557-565
This article examines the extent and correlates of complementary and alternative medicine (CAM) use among a population-based sample of California adults that is highly diverse in terms of sociodemographic characteristics and health status. As a follow-up to a state-wide health survey of 55,428 people, 9187 respondents were interviewed by phone regarding their use of 11 different types of CAM providers, special diets, dietary supplements, mind-body interventions, self-prayer and support groups. The sample included all participants in the initial survey who reported a diagnosis of cancer, all the non-white respondents, as well as a random sample of all the white respondents. The relation of CAM use to the respondents' demographic characteristics and health status is assessed. CAM use among Californians is generally high, and the demographic factors associated with high rates of CAM use are the same in California as have been found in other studies. Those reporting a diagnosis of cancer and those who report other chronic health problems indicate a similar level of visits to CAM providers. However, those with cancer are less likely to report using special diets, and more likely to report using support groups and prayer. Health status, gender, ethnicity and education have an independent impact upon CAM use among those who are healthy as well as those who report suffering from chronic health problems, although the precise relation varies by the type of CAM used. 相似文献
100.