全文获取类型
收费全文 | 3539篇 |
免费 | 189篇 |
国内免费 | 27篇 |
专业分类
耳鼻咽喉 | 33篇 |
儿科学 | 121篇 |
妇产科学 | 42篇 |
基础医学 | 558篇 |
口腔科学 | 71篇 |
临床医学 | 268篇 |
内科学 | 810篇 |
皮肤病学 | 50篇 |
神经病学 | 267篇 |
特种医学 | 384篇 |
外国民族医学 | 2篇 |
外科学 | 458篇 |
综合类 | 59篇 |
一般理论 | 1篇 |
预防医学 | 178篇 |
眼科学 | 41篇 |
药学 | 234篇 |
中国医学 | 1篇 |
肿瘤学 | 177篇 |
出版年
2023年 | 21篇 |
2022年 | 33篇 |
2021年 | 51篇 |
2020年 | 30篇 |
2019年 | 38篇 |
2018年 | 48篇 |
2017年 | 43篇 |
2016年 | 53篇 |
2015年 | 61篇 |
2014年 | 91篇 |
2013年 | 118篇 |
2012年 | 159篇 |
2011年 | 149篇 |
2010年 | 125篇 |
2009年 | 122篇 |
2008年 | 129篇 |
2007年 | 198篇 |
2006年 | 155篇 |
2005年 | 140篇 |
2004年 | 144篇 |
2003年 | 125篇 |
2002年 | 145篇 |
2001年 | 105篇 |
2000年 | 109篇 |
1999年 | 97篇 |
1998年 | 79篇 |
1997年 | 61篇 |
1996年 | 56篇 |
1995年 | 38篇 |
1994年 | 38篇 |
1993年 | 39篇 |
1992年 | 59篇 |
1991年 | 55篇 |
1990年 | 65篇 |
1989年 | 87篇 |
1988年 | 60篇 |
1987年 | 55篇 |
1986年 | 48篇 |
1985年 | 55篇 |
1984年 | 42篇 |
1983年 | 27篇 |
1982年 | 23篇 |
1980年 | 20篇 |
1979年 | 38篇 |
1978年 | 21篇 |
1977年 | 20篇 |
1976年 | 16篇 |
1975年 | 20篇 |
1973年 | 16篇 |
1972年 | 17篇 |
排序方式: 共有3755条查询结果,搜索用时 15 毫秒
71.
Anne Delbaere Pierre J. M. Bergmann Yvon Englert 《Journal of assisted reproduction and genetics》1997,14(5):241-244
Purpose: The purpose of this work was to investigate the ovarian renin-angiotensin system (RAS) during severe ovarian hyperstimulation
syndrome (OHSS) with ascites and pleural effusion.
Methods: Two patients who developed severe OHSS after ovarian stimulation for in vitro fertilization were investigated. Both patients
presented ascites and pleural effusion. Blood, ascites, and pleural fluid were simultaneously sampled during therapeutic paracentesis
and thoracocentesis. Renin activity, active renin, prorenin, and angiotensin II immunoreactivity (Ang II-ir) were measured
simultaneously in plasma, ascites, and pleural fluid.
Results: Prorenin, renin activity, active renin, and Ang II-ir levels were much higher than normal plasmatic laboratory norms in the
three compartments. Prorenin and Ang II-ir levels were the highest in the ascites, while they were in the same range in the
pleural fluid and in the plasma.
Conclusions: The present findings provide additional evidence for the ovarian origin of the prorenin and Ang II-ir in the ascites of severe
OHSS. 相似文献
72.
73.
74.
Information‐seeking and use of information resources among melanoma patients of German skin cancer centers 下载免费PDF全文
75.
76.
The presentation of tumor patients to tumor boards has widely developed into a medical standard. The necessary compliance to the medical standard can lead to obligatory presentation if the complexity of a case dictates that this cannot be comprehensively covered by a single treating physician. The organization of a tumor board must be so that the structure and specialist competence guarantees an adequate consultative function of the represented specialties. Tumor board members are not automatically promoted to become part of the treating team just by participation and therefore do not have a guarantor position but do have the obligation of care of a consulting physician. Tumor board decisions have a recommendation character, are not binding in the legal sense and do not relieve the treating physician from the obligation to critically scrutinize the recommendations before implementation. On the other hand the treating physician must be able to justify not following the recommendations on the basis of the medical obligation to care. The tumor board must fulfil the same requirements for documentation as any other consultative activity. 相似文献
77.
78.
79.
80.