全文获取类型
收费全文 | 7693篇 |
免费 | 577篇 |
国内免费 | 11篇 |
专业分类
耳鼻咽喉 | 77篇 |
儿科学 | 298篇 |
妇产科学 | 204篇 |
基础医学 | 1050篇 |
口腔科学 | 89篇 |
临床医学 | 1006篇 |
内科学 | 1297篇 |
皮肤病学 | 123篇 |
神经病学 | 877篇 |
特种医学 | 143篇 |
外科学 | 793篇 |
综合类 | 42篇 |
一般理论 | 9篇 |
预防医学 | 1035篇 |
眼科学 | 107篇 |
药学 | 491篇 |
中国医学 | 4篇 |
肿瘤学 | 636篇 |
出版年
2024年 | 18篇 |
2023年 | 98篇 |
2022年 | 140篇 |
2021年 | 310篇 |
2020年 | 193篇 |
2019年 | 301篇 |
2018年 | 357篇 |
2017年 | 214篇 |
2016年 | 239篇 |
2015年 | 277篇 |
2014年 | 371篇 |
2013年 | 482篇 |
2012年 | 721篇 |
2011年 | 687篇 |
2010年 | 373篇 |
2009年 | 306篇 |
2008年 | 510篇 |
2007年 | 533篇 |
2006年 | 462篇 |
2005年 | 445篇 |
2004年 | 349篇 |
2003年 | 288篇 |
2002年 | 257篇 |
2001年 | 40篇 |
2000年 | 27篇 |
1999年 | 32篇 |
1998年 | 57篇 |
1997年 | 40篇 |
1996年 | 25篇 |
1995年 | 23篇 |
1994年 | 13篇 |
1993年 | 22篇 |
1992年 | 16篇 |
1991年 | 9篇 |
1990年 | 5篇 |
1989年 | 5篇 |
1988年 | 3篇 |
1987年 | 3篇 |
1986年 | 4篇 |
1984年 | 5篇 |
1983年 | 1篇 |
1982年 | 4篇 |
1981年 | 4篇 |
1979年 | 1篇 |
1978年 | 4篇 |
1976年 | 1篇 |
1975年 | 2篇 |
1972年 | 1篇 |
1970年 | 1篇 |
1968年 | 1篇 |
排序方式: 共有8281条查询结果,搜索用时 46 毫秒
91.
92.
Diane Santa Maria Charlene A. Flash Sarah Narendorf Anamika Barman-Adhikari Robin Petering Hsun-Ta Hsu Jama Shelton Kimberly Bender Kristin Ferguson 《The Journal of adolescent health》2019,64(5):574-580
Purpose
Evidence suggests that young adults experiencing homelessness (YEH) are at elevated risk of HIV compared to housed youth. Given the limited research on pre-exposure prophylaxis (PrEP) awareness among YEH, this study examined their PrEP knowledge and attitudes.Methods
Data from a cross-sectional survey among YEH (ages 18–26) (n?=?1,427) in seven U.S. cities were used to assess their knowledge and attitudes regarding PrEP to inform HIV prevention efforts.Results
Participants were primarily male youth of color. The mean age was 20.9years. While 66% felt at risk for HIV, only 14% strongly agreed that they try to protect themselves from getting infected with HIV. Most (84%) were eligible for PrEP based on risk, yet only 29% had knowledge of PrEP. Despite this, 59% reported they were likely/extremely likely to take PrEP. Access to free PrEP (55%), HIV testing (72%), healthcare (68%), and one-on-one (62%), and text messaging support (57%) were rated as very/extremely important for PrEP uptake and adherence.Conclusions
The results of this study suggest missed opportunities to prevent new HIV infections among YEH. Efforts to increase PrEP uptake among this population should consider provider- and system-level interventions to increase PrEP awareness, decrease PrEP-associated healthcare costs, improve access to PrEP providers, and provide in-person and text messaging support. 相似文献93.
Joshua I. Breier Duane Dede Kristin Fiano Eileen B. Fennell Laurie Leach Basim Uthman 《Neurocase》2013,19(4):341-345
Abstract A Wada procedure was performed on a bilingual seizure surgery candidate. Immediately after the injection of barbiturate into the right internal carotid artery the patient spontaneously switched from counting in English (the language he indicated that he used most often) to Spanish (the language he learned first). He named in Spanish spontaneously as well. After injection of the left ICA the patient exhibited a global aphasia, with no evidence for differential recovery of language as the aphasia cleared. These observations are discussed in relation to the hypothesis that a language learned later in life may be more likely to be bilaterally represented than the first language learned. 相似文献
94.
95.
Childhood developmental vulnerabilities associated with early life exposure to infectious and noninfectious diseases and maternal mental illness
下载免费PDF全文
![点击此处可从《Journal of child psychology and psychiatry, and allied disciplines》网站下载免费的PDF全文](/ch/ext_images/free.gif)
96.
97.
Cristina Has Kristin Technau‐Hafsi 《Journal der Deutschen Dermatologischen Gesellschaft》2016,14(2):123-140
Palmoplantar keratodermas comprise a diverse group of acquired and hereditary disorders marked by excessive thickening of the epidermis of palms and soles. Early onset and positive family history suggest a genetic cause. While hereditary forms of palmoplantar keratoderma (PPK) may represent the sole or dominant clinical feature, they may also be associated with other ectodermal defects or extracutaneous manifestations. In recent years, much progress has been made in deciphering the genetic basis of PPK, which has led to the emergence of new disorders and syndromes. The elucidation of disease mechanisms has opened new avenues for specific therapies, increasingly sparking interest in this field. Given the high heterogeneity with respect to clinical features, genetic defects, and disease mechanisms, the classification of PPK is based on various criteria. These include extent of disease manifestations, morphology of palmoplantar skin involvement, inheritance patterns, and molecular pathogenesis. Though not always feasible, the clinical distinction of various PPK entities is based on fine‐tuned criteria or clues. Remarkably, apparently distinct disorders have been shown to be allelic, as they are caused by mutations in the same gene. By contrast, similar clinical pictures may result from mutations in different genes. Because of this complexity, mutation analysis is required to determine the precise type of PPK. The best‐defined entities are described in this review. 相似文献
98.
99.
100.