全文获取类型
收费全文 | 531034篇 |
免费 | 33981篇 |
国内免费 | 816篇 |
专业分类
耳鼻咽喉 | 7135篇 |
儿科学 | 17355篇 |
妇产科学 | 14626篇 |
基础医学 | 87131篇 |
口腔科学 | 14869篇 |
临床医学 | 45608篇 |
内科学 | 96675篇 |
皮肤病学 | 12720篇 |
神经病学 | 37454篇 |
特种医学 | 18892篇 |
外国民族医学 | 64篇 |
外科学 | 80216篇 |
综合类 | 8607篇 |
一般理论 | 122篇 |
预防医学 | 40423篇 |
眼科学 | 12484篇 |
药学 | 41611篇 |
中国医学 | 1112篇 |
肿瘤学 | 28727篇 |
出版年
2018年 | 5237篇 |
2016年 | 4389篇 |
2015年 | 4807篇 |
2014年 | 6373篇 |
2013年 | 10079篇 |
2012年 | 13578篇 |
2011年 | 15160篇 |
2010年 | 8782篇 |
2009年 | 8111篇 |
2008年 | 14385篇 |
2007年 | 15469篇 |
2006年 | 15777篇 |
2005年 | 15153篇 |
2004年 | 14819篇 |
2003年 | 14087篇 |
2002年 | 13955篇 |
2001年 | 24519篇 |
2000年 | 25516篇 |
1999年 | 20881篇 |
1998年 | 5583篇 |
1997年 | 4860篇 |
1996年 | 5211篇 |
1995年 | 4821篇 |
1994年 | 4492篇 |
1992年 | 15980篇 |
1991年 | 16545篇 |
1990年 | 16632篇 |
1989年 | 16057篇 |
1988年 | 14795篇 |
1987年 | 14682篇 |
1986年 | 13777篇 |
1985年 | 13230篇 |
1984年 | 9808篇 |
1983年 | 8400篇 |
1982年 | 4743篇 |
1981年 | 4395篇 |
1979年 | 9596篇 |
1978年 | 7006篇 |
1977年 | 5916篇 |
1976年 | 5746篇 |
1975年 | 6551篇 |
1974年 | 7771篇 |
1973年 | 7250篇 |
1972年 | 7045篇 |
1971年 | 6765篇 |
1970年 | 6234篇 |
1969年 | 5964篇 |
1968年 | 5670篇 |
1967年 | 5109篇 |
1966年 | 4539篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Alexander E. J. Trevatt David R. Thomson Robert Miller Matthew Colquhoun Akinyemi I. Idowu Shakeel Rahman 《Journal of plastic surgery and hand surgery》2019,53(2):97-104
Academic output is just one aspect of a successful career as a plastic surgeon. However, for those with a strong interest in academia, the academic output of a department will likely be a key factor when deciding how to rank jobs. The aim of this study was to quantify and rank the academic output of plastic surgery units across the UK and Ireland. The Institute for Scientific Information (ISI) Web of Science Bibliometric analysis tool was used to collate cumulative (1950–2016), 10 year (2006–2016) and 3 years (2013–2015) research output data for plastic surgery units in the UK and Ireland. Sixty-six plastic surgery units were identified. Departments were ranked for each time period according to the number of papers produced, number of citations (Nc) and h-index (a measure of the impact of scientific output). The top 3 departments for number of papers in the last 10 years were The Royal Free Hospital, London (226) Broomfield Hospital, Chelmsford (218), and Morriston Hospital and Swansea (188). The top 3 for h-number were The Royal Free Hospital (21) Wythenshawe Hospital, Manchester (18) and Morriston Hospital (17). Academic output varies across plastic surgery units in the UK and Ireland. A number of departments have consistently maintained high academic outputs across the years and will be of interest to surgeons hoping to pursue a career in academia. 相似文献
3.
4.
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
5.
6.
7.
8.
Amosova E. N. Shilova I. V. Zueva E. P. Rybalkina O. Yu. 《Pharmaceutical Chemistry Journal》2020,54(7):721-724
Pharmaceutical Chemistry Journal - Three extracts were produced from the above-ground part of the meadowsweet Filipendula ulmaria (L.) Maxim. using water, 40% ethanol, and 70% ethanol. Comparative... 相似文献
9.
Nevo N. Goldstein A. L. Staierman M. Eran N. Carmeli I. Rayman S. mnouskin Y. 《Hernia》2022,26(6):1491-1499
Hernia - The minimally invasive surgical repair of combined inguinal and ventral hernias often requires shifting from one approach or plane to another. The traditional enhanced-view totally... 相似文献
10.
Hui-Ju Ch’ang 《World journal of hepatology》2015,7(16):2029-2040
The success of sorafenib in prolonging survival of patients with hepatocellular carcinoma (HCC) makes therapeutic inhibition of angiogenesis a component of treatment for HCC. To enhance therapeutic efficacy, overcome drug resistance and reduce toxicity, combination of antiangiogenic agents with chemotherapy, radiotherapy or other targeted agents were evaluated. Nevertheless, the use of antiangiogenic therapy remains suboptimal regarding dosage, schedule and duration of therapy. The issue is further complicated by combination antiangiogenesis to other cytotoxic or biologic agents. There is no way to determine which patients are most likely respond to a given form of antiangiogenic therapy. Activation of alternative pathways associated with disease progression in patients undergoing antiangiogenic therapy has also been recognized. There is increasing importance in identifying, validating and standardizing potential response biomarkers for antiangiogenesis therapy for HCC patients. In this review, biomarkers for antiangiogenesis therapy including systemic, circulating, tissue and imaging ones are summarized. The strength and deficit of circulating and imaging biomarkers were further demonstrated by a series of studies in HCC patients receiving radiotherapy with or without thalidomide. 相似文献