全文获取类型
收费全文 | 8056篇 |
免费 | 630篇 |
国内免费 | 22篇 |
专业分类
耳鼻咽喉 | 65篇 |
儿科学 | 275篇 |
妇产科学 | 267篇 |
基础医学 | 1011篇 |
口腔科学 | 126篇 |
临床医学 | 1124篇 |
内科学 | 1403篇 |
皮肤病学 | 133篇 |
神经病学 | 733篇 |
特种医学 | 193篇 |
外科学 | 816篇 |
综合类 | 59篇 |
一般理论 | 16篇 |
预防医学 | 1080篇 |
眼科学 | 111篇 |
药学 | 602篇 |
中国医学 | 13篇 |
肿瘤学 | 681篇 |
出版年
2023年 | 99篇 |
2022年 | 54篇 |
2021年 | 226篇 |
2020年 | 200篇 |
2019年 | 245篇 |
2018年 | 262篇 |
2017年 | 216篇 |
2016年 | 258篇 |
2015年 | 255篇 |
2014年 | 316篇 |
2013年 | 468篇 |
2012年 | 664篇 |
2011年 | 734篇 |
2010年 | 366篇 |
2009年 | 297篇 |
2008年 | 553篇 |
2007年 | 541篇 |
2006年 | 543篇 |
2005年 | 501篇 |
2004年 | 373篇 |
2003年 | 408篇 |
2002年 | 362篇 |
2001年 | 69篇 |
2000年 | 42篇 |
1999年 | 64篇 |
1998年 | 66篇 |
1997年 | 46篇 |
1996年 | 43篇 |
1995年 | 34篇 |
1994年 | 40篇 |
1993年 | 31篇 |
1992年 | 36篇 |
1991年 | 16篇 |
1990年 | 29篇 |
1989年 | 20篇 |
1988年 | 15篇 |
1987年 | 14篇 |
1986年 | 18篇 |
1984年 | 9篇 |
1983年 | 16篇 |
1982年 | 14篇 |
1981年 | 13篇 |
1980年 | 9篇 |
1979年 | 15篇 |
1978年 | 8篇 |
1977年 | 8篇 |
1975年 | 8篇 |
1974年 | 15篇 |
1973年 | 8篇 |
1969年 | 7篇 |
排序方式: 共有8708条查询结果,搜索用时 593 毫秒
101.
Birth plans—Impact on mode of delivery,obstetrical interventions,and birth experience satisfaction: A prospective cohort study 下载免费PDF全文
Yalda Afshar MD PhD Jenny Y. Mei MD Kimberly D. Gregory MD MPH Sarah J. Kilpatrick MD PhD Tania F. Esakoff MD 《分娩》2018,45(1):43-49
Objective
To examine whether the presence of a birth plan was associated with mode of delivery, obstetrical interventions, and patient satisfaction.Methods
This was a prospective cohort study of singleton pregnancies greater than 34 weeks’ gestation powered to evaluate a difference in mode of delivery. Maternal characteristics, antenatal factors, neonatal characteristics, and patient satisfaction measures were compared between groups. Differences between groups were analyzed using chi‐squared for categorical variables, Fisher exact test for dichotomous variables, and Wilcoxon rank sum test for continuous or ordinal variables.Results
Three hundred women were recruited: 143 (48%) had a birth plan. There was no significant difference in the risk of cesarean delivery for women with a birth plan compared with those without a birth plan (21% vs 16%, adjusted odds ratio [adjOR] 1.11 [95% confidence interval (CI) 0.61‐2.04]). Women with a birth plan were 28% less likely to receive oxytocin (P < .01), 29% less likely to undergo artificial rupture of membranes (P < .01), and 31% less likely to have an epidural (P < .01). There was no difference in the length of labor (P = .12). Women with a birth plan were less satisfied (P < .01) and felt less in control (P < .01) of their birth experience than those without a birth plan.Conclusion
Women with and without a birth plan had similar odds of cesarean delivery. Though they had fewer obstetrical interventions, they were less satisfied with their birth experience, compared with women without birth plans. Further research is needed to understand how to improve childbirth‐related patient satisfaction. 相似文献102.
103.
104.
Jenny Deluca Lukas Tappeiner Maria Pichler Klaus Eisendle 《Journal der Deutschen Dermatologischen Gesellschaft》2014,12(11):1060-1062
Reconstructions of large surgical defects of the central part of the nose pose a challenge for the surgeon due to its cosmetically prominent location. Treatment options include second intention healing, full‐thickness skin grafts and various local flaps. In the present case the “Peng flap” was used for the reconstruction of a 3.1 × 7 cm sized deep defect of the convex curve of the central nasal area in a 66‐year‐old woman. The Peng flap was performed as single‐stage procedure without complications. Good cosmetic outcome was provided by the use of adjacent skin from the lax perinasal area, the placement of the scar lines between facial cosmetic units, and the excellent tissue match for the sebaceous nasal skin. Considering the few complications of a single‐stage procedure associated with an excellent aesthetic outcome, the Peng flap should be considered not only as an effective choice for reconstruction of the cosmetically complex midline nasal tip but also the convex curve of the central nose. 相似文献
105.
Vincent Pong Koon-Ho Chan Boon-Hor Chong Wai-Man Lui Gilberto Ka-Kit Leung Hung-Fat Tse Jenny Kan-Suen Pu Chung-Wah Siu 《Cerebellum (London, England)》2012,11(4):939-945
Cerebellar hemorrhage is the least common type of intracranial hemorrhage (ICH) encountered in clinical practice, and clinical data concerning the long-term outcomes are limited. This study aimed to investigate the long-term outcomes following spontaneous cerebellar hemorrhage in a cohort of Chinese patients. This single-center observational study was carried out between 1996 and 2010 and included 72 consecutive Chinese patients with a first spontaneous cerebellar hemorrhage. Of 440 patients with primary ICH, 72 (16.4%) had primary cerebellar hemorrhage. The mean age was 67.5?±?12.3?years and patients were predominantly male (54%). The 30-day mortality was 16.7% with Glasgow coma scale ??8 as the only predictor. At 6?months, 56.7% of patients who survived the first 30?days had a persistently poor functional status with modified Rankin scale score >2. After a mean follow-up of 4.7?years, 3.3% of patients had recurrent ICH, a recurrence rate of 7.3 per 1,000 patient-years. Ischemic stroke occurred in 12% of patients, an incidence of 25.5 per 1,000 patient-years. This study provided data on the long-term outcome of post-cerebellar hemorrhage in Chinese patients. 相似文献
106.
107.
108.
109.
Involving children and young people in clinical research through the forum of a European Young Persons’ Advisory Group: needs and challenges 下载免费PDF全文
Segolene Gaillard Salma Malik Jenny Preston Begonya Nafria Escalera Pamela Dicks Nathalie Touil Sandrine Mardirossian Joana Claverol‐Torres Behrouz Kassaï 《Fundamental & clinical pharmacology》2018,32(4):357-362
Children and young people are seen as fundamental to the design and delivery of clinical research as active and reflective participants. In Europe, involvement of children and young people in clinical research is promoted extensively in order to engage young people in research as partners and to give them a voice to raise their own issues or opinions and for their involvement in planning and decision making in addition to learning research skills. Children and young people can be trained in clinical research through participation in young person advisory groups (YPAGs). Members of YPAGs assist other children and young people to learn about clinical research and share their experience and point of view with researchers, thereby possibly influencing all phases of research including the development and prioritization of research questions, design and methods, recruitment plans, and strategies for results dissemination. In the long term, the expansion of YPAGs in Europe will serve as a driving force for refining pediatric clinical research. It will help in a better definition of research projects according to the patients’ needs. Furthermore, direct engagement of children and young people in research will be favorable to both researchers and young people. 相似文献
110.
Peter K.K. Wong Laura Christie Jenny Johnston Alison Bowling Diane Freeman Fred Joshua Paul Bird Karen Chia Hanish Bagga 《Medicine》2014,93(25)
The aim of this study was to assess health literacy (word recognition and comprehension) in patients at a rural rheumatology practice and to compare this to health literacy levels in patients from an urban rheumatology practice.Inclusion criteria for this cross-sectional study were as follows: ≥18-year-old patients at a rural rheumatology practice (Mid-North Coast Arthritis Clinic, Coffs Harbour, Australia) and an urban Sydney rheumatology practice (Combined Rheumatology Practice, Kogarah, Australia). Exclusion criteria were as follows: ill-health precluding participation; poor vision/hearing, non-English primary language. Word recognition was assessed using the Rapid Estimate of Adult Literacy in Medicine (REALM). Comprehension was assessed using the Test of Functional Health Literacy in Adults (TOFHLA). Practical comprehension and numeracy were assessed by asking patients to follow prescribing instructions for 5 common rheumatology medications.At the rural practice (Mid-North Coast Arthritis Clinic), 124/160 patients agreed to participate (F:M 83:41, mean age 60.3 ± 12.2) whereas the corresponding number at the urban practice (Combined Rheumatology Practice) was 99/119 (F:M 69:30, mean age 60.7 ± 17.5). Urban patients were more likely to be born overseas, speak another language at home, and be employed. There was no difference in REALM or TOFHLA scores between the 2 sites, and so data were pooled. REALM scores indicated 15% (33/223) of patients had a reading level ≤Grade 8 whereas 8% (18/223) had marginal or inadequate functional health literacy as assessed by the TOFHLA. Dosing instructions for ibuprofen and methotrexate were incorrectly understood by 32% (72/223) and 21% (46/223) of patients, respectively.Up to 15% of rural and urban patients had low health literacy and <1/3 of patients incorrectly followed dosing instructions for common rheumatology drugs.There was no significant difference in word recognition, functional health literacy, and numeracy between rural and urban rheumatology patients. 相似文献