全文获取类型
收费全文 | 194131篇 |
免费 | 1987篇 |
国内免费 | 110篇 |
专业分类
耳鼻咽喉 | 1340篇 |
儿科学 | 7002篇 |
妇产科学 | 3432篇 |
基础医学 | 18917篇 |
口腔科学 | 2097篇 |
临床医学 | 13819篇 |
内科学 | 35898篇 |
皮肤病学 | 1163篇 |
神经病学 | 18098篇 |
特种医学 | 9346篇 |
外科学 | 31712篇 |
综合类 | 2392篇 |
现状与发展 | 1篇 |
一般理论 | 4篇 |
预防医学 | 19431篇 |
眼科学 | 3089篇 |
药学 | 10379篇 |
中国医学 | 666篇 |
肿瘤学 | 17442篇 |
出版年
2023年 | 163篇 |
2022年 | 366篇 |
2021年 | 802篇 |
2020年 | 351篇 |
2019年 | 707篇 |
2018年 | 22624篇 |
2017年 | 17732篇 |
2016年 | 19878篇 |
2015年 | 1422篇 |
2014年 | 1509篇 |
2013年 | 1766篇 |
2012年 | 8554篇 |
2011年 | 22440篇 |
2010年 | 19610篇 |
2009年 | 12298篇 |
2008年 | 20698篇 |
2007年 | 22933篇 |
2006年 | 1769篇 |
2005年 | 3367篇 |
2004年 | 4328篇 |
2003年 | 5242篇 |
2002年 | 3343篇 |
2001年 | 366篇 |
2000年 | 455篇 |
1999年 | 274篇 |
1998年 | 331篇 |
1997年 | 329篇 |
1996年 | 197篇 |
1995年 | 214篇 |
1994年 | 191篇 |
1993年 | 138篇 |
1992年 | 97篇 |
1991年 | 141篇 |
1990年 | 159篇 |
1989年 | 109篇 |
1988年 | 85篇 |
1987年 | 71篇 |
1986年 | 58篇 |
1985年 | 68篇 |
1984年 | 58篇 |
1983年 | 42篇 |
1982年 | 52篇 |
1981年 | 38篇 |
1980年 | 65篇 |
1978年 | 41篇 |
1974年 | 40篇 |
1969年 | 36篇 |
1938年 | 63篇 |
1932年 | 65篇 |
1930年 | 50篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
Manuel Steiner Andishe Attarbaschi Margit K nig Helmut Gadner Oskar A. Haas Georg Mann 《Pediatric hematology and oncology》2004,22(1):11-16
Constitutional trisomy 21 is the most prominent predisposing factor to childhood leukemia, whereas the t(12;21)(p13;q22) with its molecular genetic counterpart, the TEL/AML1 fusion gene, is the most common acquired chromosomal rearrangement in childhood B-cell precursor (BCP) acute lymphoblastic leukemia (ALL). Thus, it was somewhat surprising that according to the currently available literature the incidence of TEL/AML1+ BCP ALL is extremely low in patients with Down syndrome (DS). To further investigate this issue in a population-based fashion, the authors retrospectively assessed the number of DS patients with a TEL/AML1+ ALL in two consecutive Austrian ALL multicenter trials. Accordingly, they were able to analyze 8 of 10 individuals with DS and a BCP ALL, including 2 who suffered from a TEL/AML1+ leukemia. Based on this observation we concluded that individuals with a constitutional trisomy 21 may have the similar likelihood to develop a TEL/AML1+ leukemia as BCP ALL patients without this specific predisposing factor. 相似文献
32.
33.
34.
35.
36.
37.
Benedita Sampaio-Maia Mónica Moreira-Rodrigues Paula Serr?o Manuel Pestana 《Nephrology, dialysis, transplantation》2006,21(2):314-323
BACKGROUND: A primary tubular sodium handling abnormality has been implicated in the edema formation of nephrotic syndrome. Dopamine synthesized by renal proximal tubules behaves as an endogenous natriuretic hormone by activating D(1)-like receptors as a paracrine/autocrine substance. METHODS: We examined the time courses of the urinary excretion of sodium, protein and dopamine in puromycin aminonucleoside (PAN)-treated and control rats. The rats were sacrificed during greatest sodium retention (day 7) as well as during negative sodium balance (day 14) for the evaluation of renal aromatic l-amino acid decarboxylase (AADC) activity, the enzyme responsible for the synthesis of renal dopamine. Also, the influence of volume expansion (VE) and the effects of the D(1)-like agonist fenoldopam (10 microg/kg bw/min) on natriuresis and on proximal tubular Na(+),K(+)-ATPase activity were examined on day 7. RESULTS: The daily urinary excretion of dopamine was decreased in PAN-treated rats, from day 5 and beyond. This was accompanied by a marked decrease in the renal AADC activity, on days 7 and 14. During VE, the fenoldopam-induced decrease in proximal tubular Na(+),K(+)-ATPase activity was more pronounced in PAN-treated rats than in controls. However, the urinary sodium excretion during fenoldopam infusion was markedly increased in control rats but was not altered in PAN-treated animals. CONCLUSION: PAN nephrosis is associated with a blunted renal dopaminergic system activity which may contribute to enhance the proximal tubular Na(+),K(+)-ATPase activity. However, the lack of renal dopamine appears not to be related with the overall renal sodium retention in a state of proteinuria. 相似文献
38.
Susanne Ramsauer 《Zeitschrift für Psychodrama und Soziometrie》2007,6(2):293-302
Anliegen dieses Artikels ist, die besondere Qualit?t und Chance von Psychodramatischer Supervision zu beschreiben, und gleichzeitig
die Kompatibilit?t und fruchtbare Erg?nzung des Moreno’schen Ansatzes innerhalb des Formats Supervision innerhalb der Sozialen
Arbeit auf zuzeigen. Dies wird anhand von 2 ausgew?hlten Praxisbeispielen dargestellt. Die Handlungskompetenz von Supervisandinnen
und Supervisanden kann durch einfache psychodramatische Interventionen erweitert werden. Handlungshemmung wird überwunden,
Spontaneit?t und Kreativit?t kommen ins Laufen und er?ffnen Perspektiven. 相似文献
39.
40.
Debra L. Roter Richard M. Frankel Judith A. Hall David Sluyter 《Journal of general internal medicine》2006,21(1):28-34
Relationship-centered care reflects both knowing and feeling: the knowledge that physician and patient bring from their respective domains of expertise, and the physician’s and patient’s experience, expression, and perception of emotions during the medical encounter. These processes are conveyed and reciprocated in the care process through verbal and nonverbal communication. We suggest that the emotional context of care is especially related to nonverbal communication and that emotion-related communication skills, including sending and receiving nonverbal messages and emotional self-awareness, are critical elements of high-quality care. Although nonverbal behavior has received far less study than other care processes, the current review argues that it holds significance for the therapeutic relationship and influences important outcomes including satisfaction, adherence, and clinical outcomes of care. 相似文献