全文获取类型
收费全文 | 86684篇 |
免费 | 5856篇 |
国内免费 | 280篇 |
专业分类
耳鼻咽喉 | 150篇 |
儿科学 | 1661篇 |
妇产科学 | 4254篇 |
基础医学 | 3610篇 |
口腔科学 | 634篇 |
临床医学 | 46836篇 |
内科学 | 7976篇 |
皮肤病学 | 660篇 |
神经病学 | 3779篇 |
特种医学 | 959篇 |
外科学 | 4965篇 |
综合类 | 2048篇 |
现状与发展 | 1篇 |
一般理论 | 22篇 |
预防医学 | 10451篇 |
眼科学 | 195篇 |
药学 | 1728篇 |
46篇 | |
中国医学 | 292篇 |
肿瘤学 | 2553篇 |
出版年
2024年 | 128篇 |
2023年 | 3872篇 |
2022年 | 4940篇 |
2021年 | 5216篇 |
2020年 | 5061篇 |
2019年 | 3363篇 |
2018年 | 3482篇 |
2017年 | 3581篇 |
2016年 | 3435篇 |
2015年 | 2635篇 |
2014年 | 5373篇 |
2013年 | 5532篇 |
2012年 | 4472篇 |
2011年 | 4164篇 |
2010年 | 3537篇 |
2009年 | 3221篇 |
2008年 | 3234篇 |
2007年 | 3206篇 |
2006年 | 2814篇 |
2005年 | 2605篇 |
2004年 | 2437篇 |
2003年 | 2232篇 |
2002年 | 2147篇 |
2001年 | 1951篇 |
2000年 | 2000篇 |
1999年 | 1679篇 |
1998年 | 771篇 |
1997年 | 553篇 |
1996年 | 501篇 |
1995年 | 451篇 |
1994年 | 353篇 |
1993年 | 258篇 |
1992年 | 566篇 |
1991年 | 537篇 |
1990年 | 541篇 |
1989年 | 432篇 |
1988年 | 397篇 |
1987年 | 185篇 |
1986年 | 86篇 |
1985年 | 117篇 |
1984年 | 111篇 |
1983年 | 93篇 |
1982年 | 79篇 |
1981年 | 93篇 |
1980年 | 48篇 |
1979年 | 52篇 |
1978年 | 38篇 |
1977年 | 50篇 |
1976年 | 49篇 |
1973年 | 29篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
42.
《Journal of Radiology Nursing》2022,41(3):170-179
BackgroundDespite indications for the removal of temporary inferior vena cava (IVC) filters, many filters are unintentionally left in place, predisposing patients to adverse outcomes.ObjectiveThis quality improvement study set out to determine the impact of an IVC filter retrieval protocol on filter retrieval rates and patients lost to follow-up for patients who had undergone placement of a temporary IVC filter.MethodsFollowing a quasi-experimental design, data of all consecutive patients who underwent insertion of a temporary IVC filter for a period of 24-month preprotocol and 12-month postprotocol were compared.ResultsFilter retrieval rates of eligible filters increased from 64.2% to 100%; patients lost to follow-up decreased from 35.9% to 0% (p < .01, both outcomes).ConclusionAdoption of a comprehensive IVC filter protocol by the service that implants these devices can improve filter retrieval rates and decrease patients being lost to follow-up. 相似文献
43.
44.
BackgroundLittle is known about the extent of ordering low-value services by.PurposeTo compare the rates of low-value back images ordered by primary care physicians (PCMDs) and primary care nurse practitioners (PCNPs).MethodWe used 2012 and 2013 Medicare Part B claims for all beneficiaries in 18 hospital referral ?regions (HRRs) and a measure of low-value back imaging from Choosing Wisely. Models included random clinician effect and fixed effects for beneficiary age, disability, Elixhauser comorbidities, clinician sex, the emergency department setting, back pain visit volume, organization, and region (HRR).FindingsPCNPs (N = 231) and PCMDs (N = 4,779) order low-value back images at similar rates (NP: all images: 26.5%; MRI/CT: 8.4%; MD: all images: 24.5%; MRI/CT: 7.7%), with no detectable significant difference when controlling for covariates.DiscussionPCNPs and PCMDs order low-value back images at an effectively similar rate. 相似文献
45.
目的 了解生活在社区的恢复期精神疾病患者在疾病康复过程中的生存压力。方法 2017年8月至2018年1月,选取北京市某社区15例恢复期精神疾病患者,通过半结构式访谈的方式收集资料,以Colaizzi 7步分析法分析资料。结果 得出4个主题:精神疾病症状和药物不良反应等引起的生理性压力;因疾病转归和日常生活角色冲突产生的精神心理性压力;社会歧视、缺乏工作机会和难以获取社会福利资源等带来的社会环境压力;贬低歧视和家庭亲属关系恶化导致的人际交往压力。结论 恢复期精神疾病患者重返家庭和社会后存在明显的生存压力,压力源包括疾病症状、社会歧视、人际关系等多个方面,因此,应注重消除精神疾病患者的自我歧视,完善社会支持与社会福利体系,增加个性化的社区精神康复活动,以减轻患者生存压力,促进其康复。 相似文献
46.
《Lancet》2015
BackgroundAdolescence is a key stage of the life course when lifelong health behaviours and attitudes to health care can be established. Poor experience of consultations with a general practitioner (GP) is common among adolescents, but little is known about whether poor experience in this group is associated with worse health status or outcomes. This study aimed to investigate this association with data from the 2014 Health Behaviour in School-Aged Children (HBSC) survey (England).MethodsWe used logistic regression to analyse data for 5335 participants aged 10–17 years in the HBSC survey. Four aspects of recent GP experience were studied: feeling at ease, being treated with respect, quality of GP explanation, and feeling able to talk about personal matters. Five dichotomised measures of health status or outcome were used (ever self-harmed; fair or poor self-reported health; frequent [at least weekly] low mood, sleeping problems, or headaches). We adjusted for participants’ sex, age, ethnicity, and family affluence score. Of 5178 participants, 1187 (23%) had not visited their GP within the past year and were excluded from the analysis.FindingsOf 3991 adolescents, 3632 (91%) felt treated with respect, 2091 (52%) could talk about personal matters, 1600 (40%) were satisfied with explanations, and 1221 (31%) felt at ease. Participants who reported poor experience of GP care were more likely to have poor health outcomes than were those who reported a good experience. For example, adolescents who did not feel at ease with their GP were more likely to report self-harm (adjusted odds ratio [AOR] 2·65, 95% CI 1·69–4·15; fair or poor health 1·64, 1·28–2·10; low mood 1·51, 1·25–1·82) and sleeping problems (1·41, 1·19–1·66). All GP indicators were associated with self-harm (AOR range 1·64–2·70; quality of GP explanation p=0·006, all others p<0·001) and feeling low (1·46–2·11, all p<0·001). The association with GP experience was less consistent for the other three health outcomes.InterpretationThis cross-sectional, observational study demonstrates that young people who report worse health symptoms, typically also report a poor experience of care. Further research is needed to investigate whether GP experience influences health outcomes—suggesting that improving GP experience might improve health outcomes in this group—or whether poor health status leads to more negative perceptions of care.FundingNone. 相似文献
47.
48.
49.
《American journal of infection control》2022,50(1):99-104
BackgroundThere is a pervasive view among some nurses and health care disciplines that antibiotic stewardship (AS) is solely a physician or pharmacist responsibility. There is an urgent need to alter this view so that nurses can seize every opportunity to prevent patient harm from antibiotics and optimize antibiotic use. One challenge to achieving full nurse engagement as equal members of the AS team is lack of an organizing framework to illustrate relationships of phenomena and concepts inherent to adoption of AS nursing practices.MethodsWe sought to create a framework derived from the peer-reviewed literature, systematic and scoping reviews, and professional standards, consensus statements and white papers. The emerging framework went through multiple iterations as it was vetted with nurse clinicians, scholars and educators, physicians, pharmacists, infection preventionists and AS subject matter experts.ResultsOur evidence-based Antibiotic Stewardship Nursing Practice SCAN-P Framework provides the much-needed context and clarity to help guide local-level nurses to participate in and lead AS nursing practice.ConclusionsNurses worldwide are ideally situated to provide holistic person-centered care, advocate for judicious use of antibiotics to minimize antibiotic resistance, and be AS educators of their patients, communities and the general public. The Antibiotic Stewardship Nursing Practice SCAN-P Framework provides a tool to do so. 相似文献
50.