全文获取类型
收费全文 | 86805篇 |
免费 | 5291篇 |
国内免费 | 692篇 |
专业分类
耳鼻咽喉 | 493篇 |
儿科学 | 1132篇 |
妇产科学 | 869篇 |
基础医学 | 8125篇 |
口腔科学 | 4156篇 |
临床医学 | 10908篇 |
内科学 | 13627篇 |
皮肤病学 | 1507篇 |
神经病学 | 6039篇 |
特种医学 | 1950篇 |
外国民族医学 | 2篇 |
外科学 | 15949篇 |
综合类 | 6315篇 |
现状与发展 | 2篇 |
一般理论 | 13篇 |
预防医学 | 9495篇 |
眼科学 | 1280篇 |
药学 | 5487篇 |
186篇 | |
中国医学 | 2855篇 |
肿瘤学 | 2398篇 |
出版年
2023年 | 1051篇 |
2022年 | 1316篇 |
2021年 | 3052篇 |
2020年 | 2587篇 |
2019年 | 6344篇 |
2018年 | 6522篇 |
2017年 | 4554篇 |
2016年 | 2199篇 |
2015年 | 1970篇 |
2014年 | 3306篇 |
2013年 | 3912篇 |
2012年 | 2600篇 |
2011年 | 2868篇 |
2010年 | 2384篇 |
2009年 | 2135篇 |
2008年 | 2128篇 |
2007年 | 2070篇 |
2006年 | 1770篇 |
2005年 | 1468篇 |
2004年 | 1196篇 |
2003年 | 1087篇 |
2002年 | 834篇 |
2001年 | 859篇 |
2000年 | 726篇 |
1999年 | 638篇 |
1998年 | 435篇 |
1997年 | 370篇 |
1996年 | 299篇 |
1995年 | 296篇 |
1994年 | 233篇 |
1993年 | 215篇 |
1992年 | 205篇 |
1991年 | 171篇 |
1990年 | 122篇 |
1989年 | 131篇 |
1988年 | 117篇 |
1987年 | 118篇 |
1985年 | 2860篇 |
1984年 | 3408篇 |
1983年 | 2891篇 |
1982年 | 3340篇 |
1981年 | 3038篇 |
1980年 | 2527篇 |
1979年 | 2506篇 |
1978年 | 2071篇 |
1977年 | 1544篇 |
1976年 | 1997篇 |
1975年 | 1522篇 |
1974年 | 1325篇 |
1973年 | 1271篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
《Journal of neonatal nursing : JNN》2022,28(3):148-154
The discussion paper will focus on continuity of care relating to previous NZ research, specifically to transitioning complex preterm infants from NICU to home based on parent experiences, and on the practice developments that have occurred, to ensure optimal health outcomes. Previous NZ research discovered parent desire a consistent service delivery for the entire transition journey from NICU and at home.An informative and comprehensive opportunity has occurred for reflective professional practice, evaluation, development and implementation which have transpired in positive change through innovative practice developments and support change implementation in Wellington, NZ. This has resulted in the articulation of a model of care that has both embraced and integrated parental desires for a continuity of care process for complex preterm infants. This has been achieved by having the same Discharge Facilitator/Key Case Manager present within the NICU and external to the NICU for Home-based infants for the entire transition journey.The paper will focus and emphasis additional practice development changes and furthermore, will present a real purpose, for other countries to learn of such practice developments that have exemplified a celebratory success for families of Wellington, NZ. 相似文献
2.
《Research in social & administrative pharmacy》2022,18(8):3284-3289
BackgroundAdverse drug reactions (ADRs) and adverse drug events (ADEs) in older people contribute to a significant proportion of hospital admissions and are common following discharge. Effective interventions are therefore required to combat the growing burden of preventable ADRs. The Prediction of Hospitalisation due to Adverse Drug Reactions in Elderly Community Dwelling Patients (PADR-EC) score is a validated risk score developed to assess the risk of ADRs in people aged 65 years and older and has the potential to be utilised as part of an intervention to reduce ADRs.ObjectivesThis trial was designed to investigate the effectiveness of an intervention to reduce ADR incidence in older people and to obtain further information about ADRs and ADEs in the 12–24 months following hospital discharge.MethodsThe study is an open-label randomised-controlled trial to be conducted at the Royal Hobart Hospital, a 500-bed public hospital in Tasmania, Australia. Community-dwelling patients aged 65 years and older with an unplanned overnight admission to a general medical ward will be recruited. Following admission, the PADR-EC ADR score will be calculated by a research pharmacist, with the risk communicated to clinicians and discussed with participants. Following discharge, nominated general practitioners and community pharmacists will receive the risk score and related medication management advice to guide their ongoing care of the patient. Follow-up with participants will occur at 3 and 12 and 18 and 24 months to identify ADRs and ADEs. The primary outcome is moderate-severe ADRs at 12 months post-discharge, and will be analysed using the cumulative incidence proportion, survival analysis and Poisson regression.SummaryIt is hypothesised that the trial will reduce ADRs and ADEs in the intervention population. The study will also provide valuable data on post-discharge ADRs and ADEs up to 24 months post-discharge. 相似文献
3.
《The Journal for Nurse Practitioners》2022,18(3):299-304.e1
Transition to practice experiences for new primary care nurse practitioners (NPs) is of interest, particularly considering the lack of requirements and options for formal training programs. The purpose of this article is to describe new primary care NPs’ experience and perceived needs of transitioning to practice. New Nebraska NPs were surveyed. The main findings include increased confidence and perceived preparedness after 3 months of practice, as well as challenges and helpful supportive services for transitioning to practice. Additional information on the transition to practice experience was provided and supports developing a formal program. 相似文献
4.
《Journal of endodontics》2022,48(1):102-108
IntroductionThe first outbreak of coronavirus disease 2019 (COVID-19) in the United States resulted in a nationwide closure of dental offices that created an oral health crisis. The aim of this observational study was to analyze and compare the characteristics of patients who visited 2 private endodontics offices from March 16 to May 31, 2020, compared with the same period in 2019.MethodsDemographic, diagnostic, and procedural data of 1520 (693 in 2020 and 827 in 2019) patient visits were collected. Bivariate and multiple logistic regression analyses were used to assess the impact of the COVID-19 outbreak on patient-related variables.ResultsBivariate analyses showed that the number of patient visits decreased in April and May 2020 (P < .0001). In 2020, patients’ self-reported pain level was higher, they were more frequently diagnosed with pulp necrosis and acute apical abscess, and they received more incisions for drainage (P < .05). Multiple logistic regression analyses showed that the COVID-19 outbreak was associated with less visits for older patients (>49.5 years) (odds ratio [OR] = 0.720; 95% confidence interval [CI], 0.573–0.906), more patients with kidney diseases (OR = 2.690; 95% CI, 1.143–6.331), higher levels of pain on percussion (OR = 2.277; 95% CI, 1.718–3.016), less cases with previously initiated treatment (OR = 0.242; 95% CI, 0.080–0.731), less periapical diagnoses of asymptomatic apical periodontitis (OR = 0.510; 95% CI, 0.306–0.849), and a higher number of nonsurgical root canal treatments (OR = 2.073; 95% CI, 1.397–3.074) and apicoectomies (OR = 2.799; 95% CI, 1.367-5.729).ConclusionsThese findings show that the public health burden of endodontic infections was more intense during the initial outbreak of COVID-19. 相似文献
5.
Kyung-Suk Suh Suk Kyun Hong Sola Lee Su young Hong Sanggyun Suh Eui Soo Han Seong-Mi Yang YoungRok Choi Nam-Joon Yi Kwang-Woong Lee 《American journal of transplantation》2022,22(1):260-265
Minimally invasive approaches are increasingly being applied in surgeries and have recently been used in living donor hepatectomy. We have developed a safe and reproducible method for minimally invasive living donor liver transplantation, which consists of pure laparoscopic explant hepatectomy and pure laparoscopic implantation of the graft, which was inserted through a suprapubic incision. Pure laparoscopic explant hepatectomy without liver fragmentation was performed in a 60-year-old man with alcoholic liver cirrhosis and hepatocellular carcinoma. The explanted liver was retrieved through a suprapubic incision. A modified right liver graft, procured from his 24-year-old son using the pure laparoscopic method, was inserted through a suprapubic incision, and implantation was performed intracorporeally throughout the procedure. The time required to remove the liver was 369 min, and the total operative time was 960 min. No complications occurred during or after the surgery. The patient recovered well, and his hospital stay was of 11 days. Pure laparoscopic living donor liver transplantation from explant hepatectomy to implantation was performed successfully. It is a feasible procedure when performed by a highly experienced surgeon and transplantation team. Further studies with larger sample sizes are needed to confirm its safety and feasibility.
6.
《The Journal for Nurse Practitioners》2022,18(1):72-75
An essential role of critical care advanced practice providers—advanced practice registered nurses and physician assistants—is to have knowledge and competency to make accurate and efficient decisions. The ability to manage clinical scenarios involving medically deteriorating patients requires higher-order cognitive thinking and leadership skills that are challenging to extrapolate in traditional interviews. In critical care, advanced practice providers must make rapid clinical assessments and implement appropriate medical interventions to deter progression of life-threatening illnesses. Adding clinical simulation to the traditional interview allows interviewers to evaluate applicants’ crisis resource management skills, leadership, and clinical competency. 相似文献
7.
《The Journal for Nurse Practitioners》2022,18(10):1048-1051
On June 24, 2022, the Supreme Court of the United States ruled to strike down Roe v. Wade (1973), a landmark decision that legalized access to abortion under the right to privacy. By overturning Roe, the decision now leaves the regulation of abortion up to each individual state. Consideration of the consequences that will affect vulnerable populations is paramount now that Roe v. Wade is overturned. Nurse practitioners who are impartial toward abortion should be introduced to Reproductive Justice, which can help them better understand the lived experiences of people with the capacity for pregnancy and the complexities surrounding abortion. 相似文献
8.
轻度认知障碍(Mild cognition impairment, MCI)是尚未达到阿尔兹海默病(Alzheimer’s disease, AD)的诊断标准且可逆转为正常脑老化状态的最佳窗口期。情志异常、肝失疏泄(肝失疏泄日久致肝郁)已被证实为MCI的重要情志病机,且“长期负性情绪积累肝失疏泄致衰加速脑老化”的科学假说已在本课题组前期研究中得到初步证实,疏肝法干预肝郁型MCI患者疗效显著,但以上作用机制尚未得到完全阐述。因此本研究系统总结了中医学对MCI的认识,长期情绪不调肝失疏泄对MCI的影响及可能机制,疏肝解郁方药及其成分改善肝郁型MCI的可行性,并提出使用无束缚性设计的眼动技术以探索疏肝法改善肝郁型MCI的可行性,为MCI的中医药干预及其神经机制探讨提供新思路,为中医情志衰老学说增添新内涵。 相似文献
9.
Many patients with terminal cancer wish to die at home and general practitioners in the United Kingdom have a critical role in providing this care. However, it has been suggested general practitioners lack confidence in end-of-life care. It is important to explore with general practitioners their experience and perspectives including feelings of confidence delivering end-of-life care to people with cancer. The aim of this study was to explore general practitioners experiences of providing end-of-life care for people with cancer in the home setting and their perceptions of confidence in this role as well as understanding implications this has on policy design. A qualitative study design was employed using semi-structured interviews and analysed using thematic analysis. Nineteen general practitioners from London were purposively sampled from eight general practices and a primary care university department in 2018–2019, supplemented with snowballing methods. Five main themes were constructed: (a) the subjective nature of defining palliative and end-of-life care; (b) importance of communication and managing expectations; (c) complexity in prescribing; (d) challenging nature of delivering end-of-life care; (e) the unclear role of primary care in palliative care. General practitioners viewed end-of-life care as challenging; specific difficulties surrounded communication and prescribing. These challenges coupled with a poorly defined role created a spread in perceived confidence. Experience and exposure were seen as enabling confidence. Specialist palliative care service expansion had important implications on deskilling of essential competencies and reducing confidence levels in general practitioners. This feeds into a complex cycle of causation, leading to further delegation of care. 相似文献
10.