全文获取类型
收费全文 | 530651篇 |
免费 | 28347篇 |
国内免费 | 496篇 |
专业分类
耳鼻咽喉 | 6695篇 |
儿科学 | 16995篇 |
妇产科学 | 12558篇 |
基础医学 | 92731篇 |
口腔科学 | 12371篇 |
临床医学 | 48675篇 |
内科学 | 95599篇 |
皮肤病学 | 11870篇 |
神经病学 | 34114篇 |
特种医学 | 19807篇 |
外国民族医学 | 53篇 |
外科学 | 78339篇 |
综合类 | 7662篇 |
现状与发展 | 2篇 |
一般理论 | 107篇 |
预防医学 | 38640篇 |
眼科学 | 11975篇 |
药学 | 41504篇 |
1篇 | |
中国医学 | 1128篇 |
肿瘤学 | 28668篇 |
出版年
2021年 | 3929篇 |
2018年 | 5757篇 |
2017年 | 4147篇 |
2016年 | 4897篇 |
2015年 | 5388篇 |
2014年 | 7155篇 |
2013年 | 10540篇 |
2012年 | 15662篇 |
2011年 | 17472篇 |
2010年 | 10014篇 |
2009年 | 8855篇 |
2008年 | 15791篇 |
2007年 | 17527篇 |
2006年 | 17025篇 |
2005年 | 16338篇 |
2004年 | 15947篇 |
2003年 | 15322篇 |
2002年 | 14856篇 |
2001年 | 22480篇 |
2000年 | 23035篇 |
1999年 | 18977篇 |
1998年 | 5252篇 |
1997年 | 4385篇 |
1996年 | 4410篇 |
1995年 | 4139篇 |
1992年 | 14466篇 |
1991年 | 15860篇 |
1990年 | 15982篇 |
1989年 | 15653篇 |
1988年 | 14328篇 |
1987年 | 14233篇 |
1986年 | 13193篇 |
1985年 | 12700篇 |
1984年 | 9404篇 |
1983年 | 8013篇 |
1982年 | 4185篇 |
1979年 | 8958篇 |
1978年 | 6393篇 |
1977年 | 5157篇 |
1976年 | 5505篇 |
1975年 | 6618篇 |
1974年 | 7422篇 |
1973年 | 7162篇 |
1972年 | 6608篇 |
1971年 | 6319篇 |
1970年 | 5896篇 |
1969年 | 5470篇 |
1968年 | 5166篇 |
1967年 | 4626篇 |
1966年 | 3973篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Journal of Behavioral Medicine - Evidence supports the use of graphic warnings to educate the public about the health harms of smoking and suggests warnings eliciting negative emotional responses... 相似文献
2.
The adrenal cortex gives rise to a biologically heterogenous group of neoplasms, each with a distinct morphology, antigen expression and molecular profile. Adrenal cortical adenomas have excellent prognosis and are usually cured by surgical resection alone, while adrenal cortical carcinomas are very aggressive tumors with a poor prognosis regardless of therapy. These tumors are rare and often challenging for a pathologist to diagnose, as significant overlap exists between benign and malignant lesions in some cases. In this review, we attempt to summarize most important histologic and clinical features of adrenal cortical adenomas and carcinomas, clarify the use of different grading systems, the use of special stains and the differential diagnosis for practicing pathologists. Most relevant hereditary syndromes associated with adrenal cortical tumors are listed. Updates in molecular alterations in adrenal cortical neoplasms and hyperplastic diseases as well as their clinical significance and potential therapeutic implications are also discussed. 相似文献
3.
Abd-Allah H. El Ashmawy Kathleen Dowson Ahmed El-Bakoury Hazem A.H. Hosny Rathan Yarlagadda Jonathan Keenan 《The Journal of arthroplasty》2021,36(3):816-822.e1
BackgroundTotal hip and knee arthroplasties are increasingly performed operations, and routine follow-up places huge demands on orthopedic services. This study investigates the effectiveness, patients’ satisfaction, and cost reduction of Virtual Joint Replacement Clinic (VJRC) follow-up of total hip arthroplasty and total knee arthroplasty patients in a university hospital. VJRC is especially valuable when in-person appointments are not advised or feasible such as during the COVID-19 pandemic.MethodsA total of 1749 patients who were invited for VJRC follow-up for knee or hip arthroplasty from January 2017 to December 2018 were included in this retrospective study. Patients were referred to VJRC after their 6-week postoperative review. Routine VJRC postoperative review was undertaken at 1 and 7 years and then 3-yearly thereafter. We evaluated the VJRC patient response rate, acceptability, and outcome. Patient satisfaction was measured in a subgroup of patients using a satisfaction survey. VJRC costs were calculated compared to face-to-face follow-up.ResultsThe VJRC had a 92.05% overall response rate. Only 7.22% required further in-person appointments with only 3% being reviewed by an orthopedic consultant. VJRC resulted in an estimated saving of £42,644 per year at our institution. The patients’ satisfaction survey showed that 89.29% of the patients were either satisfied or very satisfied with VJRC follow-up.ConclusionVJRC follow-up for hip and knee arthroplasty patients is an effective alternative to in-person clinic assessment which is accepted by patients, has high patient satisfaction, and can reduce the cost to both health services and patients. 相似文献
4.
5.
6.
Vilar-Compte Mireya Gaitán-Rossi Pablo Félix-Beltrán Lucía Bustamante Arturo V. 《Journal of immigrant and minority health / Center for Minority Public Health》2022,24(1):65-77
Journal of Immigrant and Minority Health - COVID-19 has disproportionally affected underrepresented minorities (URM) and low-income immigrants in the United States. The aim of the study is to... 相似文献
7.
8.
Stepanova E. S. Makarenkova L. M. Chistyakov V. V. Rybakov Yu. L. Gukasov V. M. Fedotcheva T. A. Parshin V. A. Votyakov V. A. Shimanovskii N. L. 《Pharmaceutical Chemistry Journal》2019,52(12):1016-1020
Pharmaceutical Chemistry Journal - An HPLC-MS method for simultaneous quantitative determination of a novel gestagenic pharmaceutical and two of its metabolites in rat and rabbit blood sera was... 相似文献
9.
Novozhilov A. V. Mindukshev I. V. Korf E. A. Krivchenko A. I. Goncharov N. V. 《Bulletin of experimental biology and medicine》2020,168(4):444-448
Bulletin of Experimental Biology and Medicine - Ammonium, an end-product of catabolism, in low doses can promote adaptation of metabolic pathways in erythrocytes under conditions of extreme... 相似文献
10.