全文获取类型
收费全文 | 20076篇 |
免费 | 921篇 |
国内免费 | 65篇 |
专业分类
耳鼻咽喉 | 648篇 |
儿科学 | 1748篇 |
妇产科学 | 690篇 |
基础医学 | 1278篇 |
口腔科学 | 1196篇 |
临床医学 | 1504篇 |
内科学 | 3614篇 |
皮肤病学 | 540篇 |
神经病学 | 1264篇 |
特种医学 | 960篇 |
外科学 | 4339篇 |
综合类 | 377篇 |
一般理论 | 7篇 |
预防医学 | 582篇 |
眼科学 | 637篇 |
药学 | 1035篇 |
中国医学 | 109篇 |
肿瘤学 | 534篇 |
出版年
2024年 | 23篇 |
2023年 | 247篇 |
2022年 | 259篇 |
2021年 | 451篇 |
2020年 | 352篇 |
2019年 | 419篇 |
2018年 | 604篇 |
2017年 | 516篇 |
2016年 | 658篇 |
2015年 | 587篇 |
2014年 | 812篇 |
2013年 | 1092篇 |
2012年 | 1258篇 |
2011年 | 1268篇 |
2010年 | 725篇 |
2009年 | 532篇 |
2008年 | 1051篇 |
2007年 | 1164篇 |
2006年 | 1199篇 |
2005年 | 1222篇 |
2004年 | 1226篇 |
2003年 | 1144篇 |
2002年 | 1077篇 |
2001年 | 706篇 |
2000年 | 616篇 |
1999年 | 529篇 |
1998年 | 196篇 |
1997年 | 163篇 |
1996年 | 162篇 |
1995年 | 76篇 |
1994年 | 70篇 |
1993年 | 37篇 |
1992年 | 96篇 |
1991年 | 87篇 |
1990年 | 69篇 |
1989年 | 68篇 |
1988年 | 33篇 |
1987年 | 30篇 |
1986年 | 34篇 |
1985年 | 29篇 |
1984年 | 26篇 |
1983年 | 15篇 |
1981年 | 11篇 |
1979年 | 13篇 |
1978年 | 9篇 |
1977年 | 8篇 |
1974年 | 9篇 |
1972年 | 12篇 |
1971年 | 8篇 |
1966年 | 9篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
Karaosmanoglu Ali Devrim Onur Mehmet Ruhi Salman Mehmet Coskun Usubutun Alp Karcaaltincaba Musturay Ozmen Mustafa Nasuh Akata Deniz 《Abdominal imaging》2019,44(4):1493-1505
Abdominal Radiology - Metastatic involvement of the ovaries is not rare. The most common tumor types metastasizing to the ovaries, from non-gynecological organs, are breast, colorectal, gastric,... 相似文献
2.
3.
4.
AbstractWe have investigated communication preferences of mammography results in 90 patients through a structured interview approach. About 81% of patients expressed that they wanted to get the results, and 18% expressed that getting the results does not help if they are incomprehensible. In patients who want to get the results, 80% preferred face-to-face interaction with physicians, whereas the others preferred other modes of communication to prevent loss of time. Majority of patients infavor of face-to-face interaction (57%) preferred both the referring physician and the radiologist. Comprehensibility and fast delivery of reports, plus direct communication with radiologists are the requirements in mammography patients while implementing patient-centered radiology. 相似文献
5.
6.
Are Dermatophytid Reactions in Patients with Kerion Celsi Much More Common Than Previously Thought? A Prospective Study
下载免费PDF全文
![点击此处可从《Pediatric dermatology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Dermatophytid reactions are secondary eruptions in response to dermatophytosis. Only a few cases demonstrating an association between dermatophytid reactions and tinea capitis have been reported. Dermatophytid reactions were evaluated in patients diagnosed with kerion celsi. Patients admitted to the dermatology clinic of Van Regional Training and Research Hospital between November 22, 2012, and July 1, 2013, diagnosed with kerion celsi were evaluated for dermatophytid reactions. Six girls (32%) and 13 boys (68%) were included in this study. Dermatophytid reactions were detected in 13 of the 19 patients (68%). Seven patients (36.84%) had eczematous patches or plaques and three (15.8%) had papules. Eczematous lesions, papules, and pustules were noted in two patients (10.5%) and one (5.3%) had signs of an angioedema‐like reaction. Dermatophytid reactions in all patients were observed before the initiation of therapy. According to our clinical experiences, dermatophytid reactions in patients with kerion celsi were more common than reported. Eczematous scaly patches or plaques were the most frequently seen forms of dermatophytid in patients with kerion celsi. Dermatophytid reactions may occur before or after initiation of systemic antifungal therapy. Recognition of this reaction is important so that dermatophytids can be distinguished from drug reactions and the decision can be made whether to continue or to stop the systemic antifungal treatment. 相似文献
7.
8.
Increased arterial stiffness in young normotensive patients with Turner syndrome: associations with vascular biomarkers
下载免费PDF全文
![点击此处可从《Clinical endocrinology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
9.
Amos Adler Na'ama Sturlesi Noga Fallach Deniz Zilberman-Barzilai Omar Hussein Shlomo E. Blum Eyal Klement Mitchell J. Schwaber Yehuda Carmeli 《Journal of clinical microbiology》2015,53(11):3515-3521
Our objectives were to study the prevalence, risk factors for carriage, and transmission dynamics of extended-spectrum-β-lactamase (ESBL)-producing Enterobacteriaceae (ESBLPE) in a national survey of cattle. This was a point prevalence study conducted from July to October 2013 in Israel. Stool samples were collected from 1,226 cows in 123 sections on 40 farms of all production types. ESBLPE were identified in 291 samples (23.7%): 287 contained Escherichia coli and 4 contained Klebsiella pneumoniae. The number of ESBLPE-positive cows was the highest in quarantine stations and on fattening farms and was the lowest on pasture farms (P = 0.03). The number of ESBLPE-positive cows was the lowest in sections containing adult cows (age, >25 months) and highest in sections containing calves (age, <4 months) (P < 0.001). Infrastructure variables that were significant risk factors for ESBLPE carriage included crowding, a lack of manure cleaning, and a lack of a cooling (P < 0.001 for each), all of which were more common in sections containing calves. Antimicrobial prophylaxis was given almost exclusively to calves and was associated with a high number of ESBLPE carriers (P < 0.001). The 287 E. coli isolates were typed into 106 repetitive extragenic palindromic (REP)-PCR types and mostly harbored blaCTX-M-1 or blaCTX-M-9 group genes. The isolates on the six farms with ≥15 isolates of ESBLPE were of 4 to 7 different REP-PCR types, with one dominant type being harbored by about half of the isolates. Fourteen types were identified on more than one farm, with only six of the farms being adjacent to each other. The prevalence of ESBLPE carriage is high in calves in cowsheds where the use of antimicrobial prophylaxis is common. ESBLPE disseminate within cowsheds mainly by clonal spread, with limited intercowshed transmission occurring. 相似文献
10.
Andac Salman Deniz Yucelten Ozlem Akin Cakici Eda Kepenekli Kadayifci 《Pediatric dermatology》2019,36(4):514-516
Acute generalized exanthematous pustulosis (AGEP) is seen uncommonly in children and sometimes shows atypical clinical features in this population. Patch testing can be used effectively in children for the confirmation of the culprit drug in cases of multiple drug use. Here, we report a rare, pediatric case of ceftriaxone‐induced AGEP confirmed by patch testing with subsequent recurrence of the skin eruption. 相似文献