全文获取类型
收费全文 | 132130篇 |
免费 | 8295篇 |
国内免费 | 1612篇 |
专业分类
耳鼻咽喉 | 1707篇 |
儿科学 | 3432篇 |
妇产科学 | 4541篇 |
基础医学 | 20133篇 |
口腔科学 | 3809篇 |
临床医学 | 11113篇 |
内科学 | 24056篇 |
皮肤病学 | 2689篇 |
神经病学 | 9603篇 |
特种医学 | 4212篇 |
外国民族医学 | 3篇 |
外科学 | 17991篇 |
综合类 | 5318篇 |
一般理论 | 54篇 |
预防医学 | 10521篇 |
眼科学 | 2942篇 |
药学 | 11120篇 |
中国医学 | 844篇 |
肿瘤学 | 7949篇 |
出版年
2021年 | 1689篇 |
2020年 | 1026篇 |
2019年 | 1696篇 |
2018年 | 2291篇 |
2017年 | 1628篇 |
2016年 | 1686篇 |
2015年 | 2012篇 |
2014年 | 2618篇 |
2013年 | 3340篇 |
2012年 | 4874篇 |
2011年 | 5070篇 |
2010年 | 2981篇 |
2009年 | 2591篇 |
2008年 | 4267篇 |
2007年 | 4417篇 |
2006年 | 4294篇 |
2005年 | 3806篇 |
2004年 | 3527篇 |
2003年 | 3175篇 |
2002年 | 2959篇 |
2001年 | 6783篇 |
2000年 | 6958篇 |
1999年 | 5748篇 |
1998年 | 1884篇 |
1997年 | 1419篇 |
1996年 | 971篇 |
1992年 | 3741篇 |
1991年 | 3815篇 |
1990年 | 3560篇 |
1989年 | 3564篇 |
1988年 | 3439篇 |
1987年 | 3282篇 |
1986年 | 3093篇 |
1985年 | 2973篇 |
1984年 | 2050篇 |
1983年 | 1797篇 |
1982年 | 988篇 |
1979年 | 1910篇 |
1978年 | 1186篇 |
1977年 | 988篇 |
1976年 | 921篇 |
1975年 | 1192篇 |
1974年 | 1359篇 |
1973年 | 1414篇 |
1972年 | 1357篇 |
1971年 | 1247篇 |
1970年 | 1137篇 |
1969年 | 1121篇 |
1968年 | 1024篇 |
1967年 | 897篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
Amanda Bolderston Jackie Middleton Cynthia Palmaria Susan Cauti Susan Fawcett 《Journal of Medical Imaging and Radiation Sciences》2021,52(2):160-163
Lesbian, gay, bisexual, transgender, queer and two-spirit plus (LGBTQ2S+) people have distinct healthcare needs that may be unaddressed in many undergraduate healthcare curricula. The Radiation Therapy Program (RADTH) at the University of Alberta underwent a review of the three-year didactic curriculum using an online survey. The survey sought to ascertain if, where and how topics related to LGBTQ2S + healthcare are taught. Results indicated that out of 10 RADTH program faculty respondents, three teach related topics. The total time dedicated within the three-year curriculum was approximately three and a half hours. Other findings showed that faculty are interested in receiving more education in this area and would favour discussions about how to incorporate these themes into appropriate courses. This preliminary investigation demonstrated that there has been some initial work in this area, but there is more to be done. 相似文献
2.
Janitz Amanda E. Schraw Jeremy M. Xu Chao Lupo Philip J. 《Cancer causes & control : CCC》2022,33(3):483-488
Cancer Causes & Control - Congenital malformations are strong risk factors for childhood cancer. Our objective was to determine whether cancer survival differs by birth defect status among... 相似文献
3.
4.
5.
6.
7.
8.
We report a Chinese family with members affected by epidermolytic ichthyosis (EI), caused by KRT gene mutations. The proband was a 14‐year‐old boy who had simultaneous appearance of nephroblastoma and epidermolytic ichthyosis (EI). Both the patient and his mother exhibited the specific clinical and pathological manifestations of EI. We analysed all exons and flanking sequences of the KRT1 and KRT10 genes using PCR, and found that the proband and his mother had a G>C transition at nucleotide position 1432 in exon 7 of KRT1, resulting in an amino acid substitution of glutamate (GAA) to glutamine (CAA) at codon 478 (E478Q). The KRT10 gene had no mutations. 相似文献
9.
10.
Y.R. Song B. Wu Y.T. Yang J. Chen L.J. Zhang Z.W. Zhang H.Y. Shi C.L. Huang J.X. Pan P. Xie 《Brazilian journal of medical and biological research》2015,48(11):973-982
Bipolar disorder (BD) is a common psychiatric mood disorder affecting more than 1-2%
of the general population of different European countries. Unfortunately, there is no
objective laboratory-based test to aid BD diagnosis or monitor its progression, and
little is known about the molecular basis of BD. Here, we performed a comparative
proteomic study to identify differentially expressed plasma proteins in various BD
mood states (depressed BD, manic BD, and euthymic BD) relative to healthy controls. A
total of 10 euthymic BD, 20 depressed BD, 15 manic BD, and 20 demographically matched
healthy control subjects were recruited. Seven high-abundance proteins were
immunodepleted in plasma samples from the 4 experimental groups, which were then
subjected to proteome-wide expression profiling by two-dimensional electrophoresis
and matrix-assisted laser desorption/ionization-time-of-flight/time-of-flight tandem
mass spectrometry. Proteomic results were validated by immunoblotting and
bioinformatically analyzed using MetaCore. From a total of 32 proteins identified
with 1.5-fold changes in expression compared with healthy controls, 16 proteins were
perturbed in BD independent of mood state, while 16 proteins were specifically
associated with particular BD mood states. Two mood-independent differential
proteins, apolipoprotein (Apo) A1 and Apo L1, suggest that BD pathophysiology may be
associated with early perturbations in lipid metabolism. Moreover, down-regulation of
one mood-dependent protein, carbonic anhydrase 1 (CA-1), suggests it may be involved
in the pathophysiology of depressive episodes in BD. Thus, BD pathophysiology may be
associated with early perturbations in lipid metabolism that are independent of mood
state, while CA-1 may be involved in the pathophysiology of depressive episodes. 相似文献