全文获取类型
收费全文 | 11125篇 |
免费 | 998篇 |
国内免费 | 57篇 |
专业分类
耳鼻咽喉 | 100篇 |
儿科学 | 373篇 |
妇产科学 | 323篇 |
基础医学 | 1471篇 |
口腔科学 | 195篇 |
临床医学 | 1091篇 |
内科学 | 2482篇 |
皮肤病学 | 159篇 |
神经病学 | 943篇 |
特种医学 | 311篇 |
外科学 | 1407篇 |
综合类 | 293篇 |
一般理论 | 11篇 |
预防医学 | 1122篇 |
眼科学 | 235篇 |
药学 | 673篇 |
中国医学 | 28篇 |
肿瘤学 | 963篇 |
出版年
2024年 | 19篇 |
2023年 | 138篇 |
2022年 | 228篇 |
2021年 | 458篇 |
2020年 | 292篇 |
2019年 | 442篇 |
2018年 | 474篇 |
2017年 | 310篇 |
2016年 | 313篇 |
2015年 | 385篇 |
2014年 | 536篇 |
2013年 | 645篇 |
2012年 | 921篇 |
2011年 | 938篇 |
2010年 | 499篇 |
2009年 | 397篇 |
2008年 | 643篇 |
2007年 | 677篇 |
2006年 | 600篇 |
2005年 | 546篇 |
2004年 | 454篇 |
2003年 | 411篇 |
2002年 | 386篇 |
2001年 | 168篇 |
2000年 | 146篇 |
1999年 | 99篇 |
1998年 | 62篇 |
1997年 | 47篇 |
1996年 | 43篇 |
1995年 | 37篇 |
1994年 | 34篇 |
1993年 | 43篇 |
1992年 | 69篇 |
1991年 | 66篇 |
1990年 | 87篇 |
1989年 | 57篇 |
1988年 | 54篇 |
1987年 | 58篇 |
1986年 | 43篇 |
1985年 | 56篇 |
1984年 | 43篇 |
1983年 | 34篇 |
1982年 | 24篇 |
1981年 | 17篇 |
1980年 | 22篇 |
1979年 | 17篇 |
1978年 | 21篇 |
1976年 | 17篇 |
1974年 | 13篇 |
1973年 | 13篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
M. Alexandra Friedman Charlotte M. Niznik Janelle R. Bolden Lynn M. Yee 《Journal of community health》2016,41(2):354-358
While peer support has been investigated in multiple clinical contexts, its application to the postpartum setting is unknown. The aim was to assess acceptability of a postpartum peer support program for women with diabetes. Observational survey-based needs assessment of forty low-income women with diabetes, receiving care at a major medical institution. Mean age and gravidity were 30.7 years and 3.15 ± 1.67 respectively. 45 % expressed interest in a “buddy.” There was no significant difference between groups desiring and not desiring this program. A majority of respondents desired telephone, text messaging, and in-person contacts (79.2, 72.1, 83.8 %), with 72.5 % of patients desiring diabetes-related activities during clinic waiting time. Many women desire a postpartum diabetes reciprocal peer program for support outside of clinician visits. Patients are receptive to educational services during their wait and outside of clinic time, a potentially valuable opportunity to share important health information. 相似文献
3.
Oga Emmanuel. A. Peters Erica. N. Mark Katrina Trocin Kathleen Coleman-Cowger Victoria. H. 《Maternal and child health journal》2019,23(2):250-257
Maternal and Child Health Journal - Background Prenatal substance use screening is recommended. The 4 P’s Plus screener includes questions on perceived problematic substance use in parents... 相似文献
4.
5.
6.
7.
Anne-Marie Selzler Veronica Moore Razanne Habash Lauren Ellerton Erica Lenton Roger Goldstein 《COPD》2020,17(4):452-461
Abstract The purpose of this study was to investigate the strength of the relationships between self-efficacy and (i) functional exercise capacity and (ii) physical activity in chronic obstructive pulmonary disease (COPD), and whether self-efficacy assessment type (i.e., COPD symptoms, exercise-task, exercise-barrier, general, falls) and physical activity assessment type (i.e., self-report vs. objective) are moderators. A systematic search of COPD and self-efficacy concepts was conducted using eight databases from inception to 23 January 2019. Studies were included if they provided correlation coefficients of the relationship between self-efficacy and functional exercise capacity or physical activity, were conducted in adults diagnosed with COPD, and were published in English-language journals. A total of 14 correlation coefficients were included in the self-efficacy and functional exercise capacity meta-analysis, and 16 in the self-efficacy and physical activity meta-analysis. Data were screened, reviewed, and extracted independently by two reviewers, with discrepancies resolved by a third reviewer. Stronger self-efficacy was associated with better functional exercise capacity (weighted r?=?0.38, 95%CI [0.25, 0.50]), and greater physical activity (weighted r?=?0.25, 95%CI [0.17, 0.34]). Exercise-task self-efficacy had the strongest relationship to functional exercise capacity (weighted r?=?0.64, 95% CI [0.51, 0.73]). For physical activity, the type of self-efficacy most strongly related was inconclusive. In COPD, self-efficacy has a relationship to functional exercise capacity and physical activity, the strength of which is influenced by the choice of self-efficacy measure. An understanding of these relationships will assist clinicians in selecting the self-efficacy measure most closely related to the outcome of interest. 相似文献
8.
Christine E. East Fung Yee Chan Shaun P. Brennecke James F. King Paul B. Colditz 《分娩》2006,33(2):101-109
Abstract: Background: Fetal pulse oximetry improves the assessment of fetal well‐being during labor. The objective of this study was to evaluate women's satisfaction with their experience with this additional technology. Methods: We surveyed women participating in the FOREMOST trial, a randomized controlled trial comparing the addition of fetal pulse oximetry (FPO) to conventional cardiotocograph (CTG) monitoring (intervention group), versus CTG‐only (control group), in the presence of nonreassuring fetal status during labor. Our survey evaluated 3 aspects of women's experience: labor, fetal monitoring, and participation in the research. The survey was administered within a few days of giving birth and repeated 3 months later. Results: No differences were found between the intervention and control groups for women's evaluations of their labor, fetal monitoring, research, or overall experiences when surveyed on both occasions. Within each study group, a small but statistically significant decline occurred in women's scores for their experience of labor and overall experience from the initial survey close to the time of giving birth, to 3 months later. The magnitude of differences in responses over time was similar for the both groups. Women were more satisfied after a spontaneous or assisted vaginal birth than after cesarean section. Length of time the research midwife was present had a significant positive effect on women's ratings of their experience several days after giving birth (p = 0.006), but no effect at 3 months. Conclusions: The addition of fetal pulse oximetry for the assessment of fetal well‐being during labor did not affect childbearing women's perceptions of fetal monitoring or their labor. Women evaluated their experience in the research process positively overall. Small changes occurred in women's perception of their satisfaction over time. (BIRTH 33:2 June 2006) 相似文献
9.
Erica Brühlmann-Jecklin 《Psychotherapie Forum》2006,14(1):36-41
I discuss various viewpoints of physically disabled and nondisabled persons. I then question which views to preserve and which need to be changed as regards the subject of supervision of the physically disabled. I believe that illness and/or being physically disabled require different definitions and that for many physically disabled persons there is no either-or. In various theories it is asked how the physically disabled can be supported in their personal development, when it is maintained held that both disabled and non-disabled persons have the same mental and emotional conditions and requirements. The following theories will be considered: role theory, labeling theory, which holds to the idea of "self-fulfilling prophesy", the concept of the five pillars of identity, the expectations of self-effectiveness and of results and the theory of internal locus of control. It is a question of whether the physically disabled, like the nondisabled, should take the responsibility for their personal development upon themselves. In closing, I discuss where supervision can have a supportive effect in helping the physically disabled achieve greater personal development. Personal development improves the quality of life. Supervision for those who work with the physically disabled should contribute to reaching these goals. 相似文献
10.
We report a full-term male infant born to nonconsanguinous parents who had clinical features of Goldenhar syndrome and cri du chat syndrome. At birth, the infant was noted to have dysmorphic features with bilateral preauricular tags, rotated ears, bilateral epicanthic folds, a left epibulbar lipodermoid, and an accessory left nipple. After he was assessed for feeding difficulty and tachypnea, he was found to have esophageal atresia with tracheoesophageal fistula. In addition, he had a high-pitched, cat-like cry, characteristic of cri-du-chat syndrome. He also failed a hearing test. Chromosomal analysis and fluorescence in situ hybridisation studies showed an unbalanced karyotype with a terminal deletion of the segment p14 on the short arm of chromosome 5, which is consistent with the cri-du-chat locus. The association of Goldenhar syndrome and cri-du-chat syndrome in this patient suggests that the chromosome 5p14 locus may harbor a gene implicated with Goldenhar syndrome. 相似文献