全文获取类型
收费全文 | 60217篇 |
免费 | 4585篇 |
国内免费 | 171篇 |
专业分类
耳鼻咽喉 | 614篇 |
儿科学 | 1841篇 |
妇产科学 | 1677篇 |
基础医学 | 8333篇 |
口腔科学 | 1064篇 |
临床医学 | 8278篇 |
内科学 | 11267篇 |
皮肤病学 | 1105篇 |
神经病学 | 6012篇 |
特种医学 | 1591篇 |
外国民族医学 | 1篇 |
外科学 | 5723篇 |
综合类 | 1207篇 |
一般理论 | 58篇 |
预防医学 | 6923篇 |
眼科学 | 1104篇 |
药学 | 4081篇 |
1篇 | |
中国医学 | 95篇 |
肿瘤学 | 3998篇 |
出版年
2023年 | 274篇 |
2022年 | 496篇 |
2021年 | 1114篇 |
2020年 | 666篇 |
2019年 | 1090篇 |
2018年 | 1275篇 |
2017年 | 970篇 |
2016年 | 1044篇 |
2015年 | 1244篇 |
2014年 | 1701篇 |
2013年 | 2583篇 |
2012年 | 3823篇 |
2011年 | 3982篇 |
2010年 | 2098篇 |
2009年 | 2000篇 |
2008年 | 3528篇 |
2007年 | 3786篇 |
2006年 | 3804篇 |
2005年 | 3770篇 |
2004年 | 3690篇 |
2003年 | 3479篇 |
2002年 | 3249篇 |
2001年 | 976篇 |
2000年 | 929篇 |
1999年 | 928篇 |
1998年 | 710篇 |
1997年 | 604篇 |
1996年 | 598篇 |
1995年 | 536篇 |
1994年 | 410篇 |
1993年 | 443篇 |
1992年 | 639篇 |
1991年 | 606篇 |
1990年 | 589篇 |
1989年 | 546篇 |
1988年 | 504篇 |
1987年 | 483篇 |
1986年 | 423篇 |
1985年 | 450篇 |
1984年 | 470篇 |
1983年 | 414篇 |
1982年 | 367篇 |
1981年 | 279篇 |
1980年 | 313篇 |
1979年 | 309篇 |
1978年 | 254篇 |
1977年 | 215篇 |
1976年 | 211篇 |
1975年 | 210篇 |
1974年 | 221篇 |
排序方式: 共有10000条查询结果,搜索用时 703 毫秒
1.
Karen Kayser Ariel Washington Lesley M. Harris Barbara Head 《Journal of psychosocial oncology》2021,39(1):17-34
Abstract
Purpose
Financial hardship can be a major cause of distress among persons with cancer, resulting in chronic stress and impacting physical and emotional health. This paper provides an analysis of the lived experience of cancer patients’ financial hardship from diagnosis to post-treatment. 相似文献2.
3.
4.
5.
6.
Rebecca L. King Albert C. Yan Debora R. Sekiguchi John K. Choi 《Journal of cutaneous pathology》2015,42(12):1012-1017
Reactive lymphoid infiltrates of the skin composed predominantly of gamma‐delta (γδ) T cells are not well described in the literature. Herein we report a case of an otherwise healthy 4‐year‐old male who presented with a waxing and waning papular rash characterized by small, discrete crusted papules spread across his trunk, face and extremities. Clinical evaluation revealed no evidence of systemic disease. Microscopic examination revealed a dermal, perivascular infiltrate of highly atypical lymphocytes with a γδ T cell phenotype, worrisome for primary cutaneous γδ T cell lymphoma. The clinical course, however, was that of a reactive condition and prompted consideration of a diagnosis of pityriasis lichenoides et varioliformis acuta (PLEVA) and lymphomatoid papulosis (LyP). In many ways, this case defies current classification schemes and seems to expand the spectrum of reactive γδ T cell infiltrates of the skin. 相似文献
7.
M. R. D. Maslin S. K. Lloyd S. Rutherford S. Freeman A. King D. R. Moore K. J. Munro 《Journal of the Association for Research in Otolaryngology》2015,16(5):631-640
Individuals with sudden unilateral deafness offer a unique opportunity to study plasticity of the binaural auditory system in adult humans. Stimulation of the intact ear results in increased activity in the auditory cortex. However, there are no reports of changes at sub-cortical levels in humans. Therefore, the aim of the present study was to investigate changes in sub-cortical activity immediately before and after the onset of surgically induced unilateral deafness in adult humans. Click-evoked auditory brainstem responses (ABRs) to stimulation of the healthy ear were recorded from ten adults during the course of translabyrinthine surgery for the removal of a unilateral acoustic neuroma. This surgical technique always results in abrupt deafferentation of the affected ear. The results revealed a rapid (within minutes) reduction in latency of wave V (mean pre = 6.55 ms; mean post = 6.15 ms; p < 0.001). A latency reduction was also observed for wave III (mean pre = 4.40 ms; mean post = 4.13 ms; p < 0.001). These reductions in response latency are consistent with functional changes including disinhibition or/and more rapid intra-cellular signalling affecting binaurally sensitive neurons in the central auditory system. The results are highly relevant for improved understanding of putative physiological mechanisms underlying perceptual disorders such as tinnitus and hyperacusis. 相似文献
8.
9.
Few studies have examined the effects of parental incarceration (PI) on outcomes above and beyond other risk and adverse childhood experiences (ACEs). The objectives of this study were to (1) the associations between PI and mental health problems (attention, externalizing, internalizing, and total behavioral problems) and (2) the mediating role of current socioeconomic status and cumulative ACEs. An observational and cross-sectional design was employed. Analyses included hierarchical multivariable linear regression modeling. The analytic sample included 613 adolescents (11–17?years). On average, youth exposed to PI experienced three times as many ACEs compared with youth unexposed. Youth exposed to PI were more likely to have behavioral problems than their unexposed peers. The main effect for all models was attenuated by current economic hardship as well as exposure to increasing numbers of ACEs. Exposure to PI can be viewed as a marker of accumulative risk for intervention since youth impacted by PI are more likely to experience behavioral difficulties and associated adverse childhood experiences. Due to the associated adversity that impact youth exposed to PI, mental health providers need to be able to identify and screen for symptoms associated with trauma. 相似文献